AHJ_ah07623 Inventory of the Cerro Corporation records, 1887-1974 Cerro Corporation records University of Wyoming. American Heritage Center.
American Heritage Center Dept. 3924, 1000 E. University Avenue University of Wyoming Laramie, WY 82071 Phone: 307.766.2574 Fax:307.766.5511 Email:ahcref@uwyo.edu URL:http://ahc.uwyo.edu/
2013

University of Wyoming

 Finding aid encoded by Ann Mulfort February 2013 Finding aid is in English Collection Summary Cerro Corporation. Cerro Corporation records 1887-1974 07623 160.5 cubic ft. (377 boxes) University of Wyoming. American Heritage Center. English Records of the Cerro de Pasco Mining Company and all its affliate and subsequent branches. History of the Cerro Corporation

The Cerro Corporation began in 1902 with the development of a Peruvian mining project. The company was originally called the Cerro de Pasco Copper Company and had its headquarters in New York City. Within 10 years, it had assets of more than 60 million dollars. Cerro was acquired by the Marmon Group in the 1970s, and at that time had mining, trucking, real estate, and manufacturing interests.

 Scope and Content

The Cerro Corporation collection contains records of the Cerro de Pasco Copper Company, Cerro de Pasco Copper Corporation, Cerro de Pasco Mining Company, Cerro de Pasco Railway Company, Cerro Peru, and Cerro Corporation. The records include correspondence, contracts, financial reports, ledgers, by-laws, and meeting minutes. Also included are leases and agreements with the Peruvian Government.

 Access Restrictions

There are no access restrictions on the materials for research purposes, and the collection is open to the public.

 Copyright Information

The researcher assumes full responsibility for observing all copyright, property, and libel laws as they apply.

 Related Materials

There are no known other archival collections created by the Cerro Corporation at the date of processing.

 Acquisition Information

The collection was received from the Marmon Group in 1981.

 Processing Information

The finding aid was encoded by Alexandra Cardin, October 2020.

 Preferred Citation

Item Description, Box Number, Folder Number, Collection Name, Collection Number, American Heritage Center, University of Wyoming.

 Access Terms Copper mines and mining -- Peru -- 20th century. Mining corporations -- United States -- 20th century. Mining corporations -- Peru -- 20th century. <?xm-replace_text {Title as Subject}?> Cerro de Pasco Copper Company. Cerro de Pasco Mining Company. Cerro de Pasco Railway Company. Cerro de Pasco Corporation. Agriculture and Natural Resources Mines and Mineral Resources Business, Industry, Labor, and Commerce Businesses and Corporations Container List Series I. Historical Files Cerro History 1Contract - Agreement Between Cerro Mining Company of Canada Limited and Redstone Mines Limited 1972 February 18 1Contract - Amendment to Agreement (Cerro and Redstone) undated 1Contract - Railway Contract, Central Railway of Peru 1909-1939 1Correspondence - To: C. Gordon Murphy, From: J. B. Stone (Appraisal of the Redstone Property, Canada1972 February 10 1Correspondence - Other (7) undated 1Legal Documents - Central Railway Company of Peru-Compilation of Documents 1877-1892 1Manuscript - Baron, Sidney & Co., "The Cerro de Pasco Story," 9 pages undated 1Manuscript - Colley, B. T. "Cerro History," 43 pages (2 Copies) 1959 January 2 1Manuscript - Olcott, E. E. "Conclusions and Advice as to Investment in the Cerro de Pasco Enterprise, No. 2, 37 pages, Handwritten 1887 September 24 1Manuscript - Roser, Francis B. "The Cerro de Pasco Copper Corporation," 112 pages 1950 January 2Memorandum - To: the Directors, CerroCorp, From: C. G. Murphy, Subject: Mining prospoects in Canada-New Agreements between Cerro-Canada and Redstone Mines Limited 1972 February 28 2Memorandum - To: C. G. Murphy and C. B. Harding, From: R. P. Koenig, Subject: Delving into Cerro's Past, First Blush Impressions 1972 February 15 2Memorandum - To: H. D. Starr, From: V. J. Giordano, Subject: Material & Documents Regarding Cerro History 1975 December 15 2Newspaper - "El Serrano," Vol. 111, No. 29 1952 February 2Newspaper Clipping - "The Beginnings of Cerro de Pasco," The West Coast Leader, Vol. 9, No. 3211918 March 2 2Notes (6) undated 2Pamphlet - Bureau of Educational and Cultural Affairs, "Resources Survey for Latin American Countries 1963 October 30 2Paperback Book - El Palacio de Torre Tagle, Libreria E Imptrenta Gil 1935 2Periodical - Mining and Metallurgy, Vol. 26, No. 467 1945 November 2Periodical - Peruvian Times 1953 June 2Report - Analysis of Cerro Corporation, Prepared by Morgan Stanley & Co. 1971 January 2Report - Silver Production of Cerro de Pasco from 1784-1886 undated 2Reprint - Cerro: A Company in Transition, from a Folder at the Fourth Annual Institutional Investor Conference, New York 1971 March 17 Hammond Organ Co. History 2Pamphlet - "The Story of Hammond Organ Company" 1966 2Reprint - Bing, Elliot C. "Miracle Music for the Home," Coronet 1953 June 2Reprint - Majeski, Jihn, Jr. "The Hammond Organ's First 25 Years," The Music Trades, pp. 30-37, 79-80 1960 May The Marmon Group History 2Book - Marmon Handbook, Sales Department, Nordyke & Marmon Companyundated 2Pamphlet - The Marmon Group 1979 Series II. Contracts and Building Files 216 Blue Print - Mining Tunnel and Section Showing Condition Existing Between Workings of Cerro de Pasco Mining Company and Rumiallana Tunnel 1907 June 10 216 Building Plan, Two Pieces 216 Building Surface Plan, Location of Cerro de Pasco Mining Company 1912-1914 2 Construction Contract - Invitation to Bid, Tunnel Driving, Shaft Sinking, Mill Cavern Excavation, and Construction 2 Construction Contract - Rio Blanco Project, Republic of Chile (2) 1966 December 12 Mining Contracts 3 Central Railway of Peru Limited and Cerro de Pasco Copper Corporation - Cerro Railway Company 1926 April 14 3 Cerro Ore Purchase Contracts 1915-1925 11 Cerro de Pasco Copper Company and La Empresa Socavorena Del Cerro de Pasco (2) 1908 January 13 11 Cerro de Pasco Copper Company and La Empresa Socavorena Del Cerro de Pasco, Agreement A-5 (5) and Agreement B (4) 1912 March 30 11 Cerro de Pasco Copper Company and La Empresa Socavorena Del Cerro de Pasco (4) in English and 1 Copy in Spanish 1912 June 26 11 Cerro de Pasco Copper Company, Oath of Office of Secretary -H. Esk. Moller 1909 June 8 11 Cerro de Pasco Mining Company and Cerro de Pasco Tunnel Company 1908 February 1 11 Cerro de Pasco Tunnel Company (Rumiallana Tunnel), Translation of Contract 1900 June 12 10 Deed - Backus & Johnston, Extracts, Notebook 10 Deed - Backus & Johnston, Translations 1-118, 2 Notebooks 3-10 Deeds - Backus & Johnston, Nos. 1-204, in Spanish 11 Morococha Cut Off, Extension of Contract 1926 April 14 11 Stock Contract - Cerro Corporation Agreement Among Underwriters (Common Stock) 1961 September 11 Unidentified Contract Written in Spanish (3) Series III. Correspondence 11 1887, 1901-1901 220 The British Mining Engineers at the Front & American Mining Engineers Resident in London 1916 January 1 16 Cerro de Pasco Corporation - Miscellaneous (10) 1958-1974, undated 15 Cerro de Pasco Corporation - Personnel General Correspondence (5) 1960-1964 11 Cerro de Pasco Mining Company Correspondence, Lima, Peru (9) 1904-1912 14 Cerro de Pasco Mining Company, re: Empresa Socavonera del Cerro de Pasco (5) 1908-1918 12,13,14 Cerro de Pasco Mining Company - Inter-Company Correspondence from D.C. Babbitt (3) 1908-1919 13 Cerro de Pasco Mining Company - Inter-Company Correspondence from W. J. Hamilton (3) 1912-1916 14 Cerro de Pasco Mining Company, re: Rumiallana Tunnell 1904-1912 15 Consolidated Coppermines (2) 1858-1959 220 Embassy of the United States of America & Irwin Laughlin, Secretary of the Embassy 1915 February 10 217 Envelope, Stamped, Peru 1913 220 Excellency Walter Hines page, American Ambassador in London & Harold A. Titcomb and Others 1915 January 30 220 Irwin Laughlin & Harold A. Titcomb 1915 February 16 11 Letterbook from A.D. Hodges 1886 May 27, 1889 219 Telegrams 219 Unidentified Documents, Six Pieces Series IV. File Folders 16 American Smelting and Refining Company - Reconciliation 17 Atlantic Cement Company, Inc. - General 17 Central Railway Company of Peru - Freight Rates 1911-1914 17,18 Central Railway Company of Peru - Freight Statements 1919-1924 18 Cerro Copper and Brass Company - Business Tax Savings Check List 1964-1965 18 Cerro Mining Company of Canada Limited (Cerro-Canada) - Corporate 19 Cerro Mining Company of Canada Limited (Cerro-Canada) - General 19 Cerro Mining Company of Canada Limited (Cerro-Canada) - Meetings Cerro-Peru 19 Accounting Working Papers and Arthur Anderson Report (Audit) 1973 December 31 19 Bera 20 Central Highway 20 Cobriza Mine - Construction Contract 20 Cobriza Mine - Folder 2 1963-1970 20 Colquiminaas (Caccachara Project) 20 Earthquake 1970 20 Employment Contracts 21 Exporting Cooperatives - Peru Decree Law 14228 21 Exsa 21 Financial and Audit Reports 21 Foreign Exchange Regulations 21 Ganadera 22 General 1971-1972 22 General, Correspondence, Cables 1968-1973 23 Gratton Tunnel 11 23 Indeco 24 Lourdes Shaft 24 Memo of Law (A&G), U.S. Taxes 24 Powers of Attorney 24 Taxes 24 CerroBrass, Cleveland, Permanent File CerroCorp 25 Alternate Stcok Appreciation Plan 1971 25 Antitrust Suit-Brass Mills 1965-1966 25 Arizona - Monthly Report of Wages-Disability and Occupational Disease 1959 25 Arizona - Quarterly Return of Income Tax Withheld 1959 25 Arizona - Quarterly Unemployment Return 1959 26 Atlantic Cement - Financial 26 Atlantic Cement Company, Inc. - McKenzie Report 1971 26 Australia 26 Chemico Metals Acquisition 1972 27 Dravo Corporation vs. Ranchers Exploration and Development Corporation and Cerro Corporation 1971 27 Financial Audit 1971 27 Form S-1 Standard Oil Company, Securities and Exchange Commission 27 Forms 105-105, New York State Annual Information Return (Residents) 1959 27 Forms 1096-1099, Federal - Annual Information Return 1959 29 New York State - Improper Practices Act 1959 29 Renegotiation, 1967-File no. 1-Data Supporting RB Form 29 Renegotiation, 1967-File no. 2-Data Supporting Standard Commercial Articles 30 Renegotiation, 1967-File No.3-Revised Figures and prime Sub Contracts 30 Southern Peru Copper Corporation - Confidential Project 1972 30 Southern Peru Copper Corporation - Toquepala Blister Copper 30 Southern Peru Copper Sales Corporation 30 Stock Option Plan of 1970 31 Stock Options 31 Stock, Purchase of 31 Stockholders - Correspondence 32 Taxes 1956-1971 32 Taxes-Loss Carry-Overs 1966 32 Teledyne, Inc. 33 Texas International Petroleum Corporation 33 Triangle Industries, Inc. vs. Kennecott Copper Corporation, 1970 (Antitrust Suit) 33 Wage Price Freeze 1971-1972 CerroCorp - Litigation - Brass Mill Private Action 27 Brazoz Electric Power Cooperative 27 The Brooklyn Union Gas Company 27 The Central Hudson Gas & Electric 28 City of Akron, Ohio 28 City of Los Angeles, California 28 City of Philadelphia, Pennsylvania 28 Commonwealth Edison Company 28 Commonwealth Edison Company, Indiana 27 Correspondence 28 The General State Authority 27 Alexander & Green Memoranda 28 Hankin Reality Corporation 28 Lindy Brothers Builders Inc., of Philadelphia 28 Lower Colorado River Authority 28 Niagara Mohawk Power Company 28 Philadelphia Electric Company 28 Rockledge Homes, Inc. 28 Wisconsin Power & Light Company CerroDel 33 Form 940- Federal Annual Unemployment Return 1959 33 Form 941-Quarterly Return of F.I.C.A. 1959 33 Forms-New York State-105&106 and Federal 1096-1099 33 CerroDel Pacos Contract with Newton Mining Corporation 1960 34 Cerro Enterprises AG (CerroAG)-General 34 Cerro Fund, Inc.- General Cerro de Pasco Copper Company 34 Amazon Pacific Railway Agreement 1912 34 By-Laws 1915 September 10 34 Dissolution 1916 34 Incorporation 34 Stock Sale of 30,000 Shares by Cia de Inversiones to Morococha Mining Company 1916 Cerro de Pasco Copper Corporation 35 Annual Meeting-Supporting Papers 1943-1950 35 Backus & Johnston Stock 1918 35 Blackbook 1955-1957 35 Bonds (Convertible)-10 Year 6% 1915-1925 35 Bonds (Sinking Fund)-10 Year 8% 1921-1931 35 By-Laws and Minutes of First Meeting 1915 35 Cremation Certificates 1916-1926 35 Leases & Cancellations for New Orleans Office & Storage Space 1942-1944 35 Peru Government-Callao Dock Loan Contract 1929 35 Powers of Attorney 1917 35 Registration in Peru 1919 35 Stock Agreement Between Stockholders C.D. Barney & Co. and Cerro de Pasco Investment Co., re: Cerro Shares 1915 35 Stock Exchange Agreement with Murkland re: 1011 Shares for 2022 1917 36 Stock Loan Agreement with Subscribers for Purchase of Backus & Johnston Stock 1918 36 Stock-Power of Attorney to Vote for Cia Peruana de Inversiones 1918 36 Stockholders Information 36 Taxes-Agreement to Collector of Internal Revenue for Payment of 1922 36 Taxes-Income 1919-1920 36 Taxes-Silver 1944-1946, 1950 Cerro de Pasco Copper Corporation - Metals 36 Antimony (Crude) Production Agreement-U.S. Commercial Company 1934-1944 36 Arsenic (Crude) Production Agreement-Metals Reserve & U.S. Commercial Company 1934-1944 36 Bismuth Sales Agreement-J.T. Baker Chemical Co. 1931 36 Bismuth Sales Agreement-(Joint)-International Metal-Cerro de Pasco & Mining & Chemical Product 1943 36 Copper Refining & Delivery Agreement-American Smelting & Refining 1914-1931 36 Copper Refining & Sales Agreement-American Metal and/or U.S. Metals Refining Co. 1920-1945 36 Zinc Concentrate Production Agreement-Metals Reserve & U.S. Commercial Company 1943-1944 36 Zinc Concentrate Sales & Freight Agreement-Metallgesellschaft A.G. 1929-1930 Cerro De Pasco Corporation 37 Computation, Market Value, Stock Dividends 1952 37 Petroleum Corporation (PetroCorp) 37 Production Statistics 1953 37 Stockholders Annual Meeting-Data 1953 37 Cerro de Pasco Corporation and Subsidiaries Cash Flow-Peru 1955-1956 Cerro de Pasco Investment Company 38 Dissolution 1915 38 Liability for Twombly re: Van Slooten Suit 1906 38 Incorporation and Amendment 1902, 1905 38 Loans for Subscribers 1905-1906 38 Power of Attorney, J.B. Haggin to L.T. Haggin 1907 38 Receipts for Partial Distribution of Assets 1915 Cerro de Pasco Investment Company - Stocks 38 Channing Option Agreement & Extension 1906-1909 38 MacFarlane Option Agreements 1907-1914 38 McCune Option Agreements 1905-1914 38 Receipt for Sale to J. Horace Harding 1912 38 Stock Subscription to Cerro de Pasco Investment Co. 1902 38 Taxes (Income) 1915 Cerro de Pasco Mining Company 38 Assignment of Properties to Company of James B. Haggin 1903-1906 39 Bonds (Debenturre) 6% (2) 39 Correspondence and Reports Relative to Inventories 1910 February 28 39 Deed of Trust-Herbert Oliver re: Transfer of Property to Morococha Mining Company 1908 39 Dissolution 1917 39 Equipment Proposals & Contracts 1903-1904 39 Incorporation 1902 39 Metals-Copper Refining & Delivery Agreement-Baltimore Copper Smelting & Rolling Company/American Smelting & Refining Company 1906-1908 39 Metals-Silver Sales Agreement-Zimmerman & Forshay 1915-1916 39 Notes (Receipted) 1909 Cerro de Pasco Railway Company 40 Construction Contracts for Railroad and Steel Cars 1902, 1905 40 Directors, Board of- Minutes of Meetings 1933-1951 40 Incorporation and Amendment 1902, 1918 40 Loan of $3,000,000 40 Meeting of Stockholders (13) 1919-1931 41 Peru Government Agreement with McCune re: Construction of Railways 1907 41 Proposed Liquidation 1951 41 Taxes (Income) 1919-1920 Cerro de Pasco Tunnel Company (Empresa Socavonera del Cerro de PAasco)-Chile 41 Architectural Design (Saladillo Townsite) 41 Banco Central de Chile 41 Bank Accounts 41 Base Company Operation 41 By-Laws 41 Candelaria Mine, Copiapo 41 Chilcan (Chile Canadian Mines) 41 Concentrates 42 Contracts-Construction (Riio Blanco)-Correspondence 42 Contracts-Design Engineering (Rio Blanco)-Correspondence 43 Contracts-Secondary International Engineering 43 Ventanas Pier-Construction CerroSales 34 Disability Benefits Insurance 1959 34 Forms-IT-103, New York State Annual Information Return (Non-Residents) 1959 34 Forms 105-106, New York State Annual Information Return (Residents) 34 Form 940-Federal Annual Unemployment Tax Return 1959 34 Forms 1099-1096-Federal Annual Information Return 1959 34 Forms W2-Federal Quarterly Return of F.I.C.A.(Federal Insurance Contributions Act) and Income Taxes Withheld 1959 34 New York State-Improper Practices Act 1959 34 New York State-Quarterly Unemployment Tax Return 1959 43 The Churruca Company, Ltd.- Accounts, Correspondence, Stockholders 43 The Churruca Company, Ltd.- U.S. Taxes 43 Cia Minera Explotadora, South America 43 Cia des MInes de Huaron 44 Circle Wire and Cable Corporation Claims and Litigations-Reader Libel & Slander Suits 44 Briefs and Complaints, Depositions 44,45 Correspondence (2) 1903-1910 45 Miscellaneous 45 Newspaper Clippings 45 Claims Owned and Not Owned by Cerro de Pasco Mining Company 45 Compania Industrial Del Centro, South America (CICSA)-Accounting, Payments to Asarco 45 Compania Industrial Del Centro, South America (CIDECSA)-Board of Directors, Minutes of Meetings 1966-1968 45 Consolidated Coppermines Company-Bonds and Consolidated Coppermines Corporation-Scrip 45 Consolidated Coppermines Company-Old Stock and Stockholders (Correspondence) 1958 45 Consolidated Coppermines Corporation-Annual Meeting-Stockholders 1958 45 Consolidated Coppermines Corporation-Certificates of Deposit, Correspondence-Corporate 1957 Consolidated Coppermines Corporation 45 Financial Statements 1959 January-February 45,46 Loss of Stock Certificates-Stockholders 1955-1958 46 Unlocated Holders of Certificates of Deposit 46 Working Papers 1959 July-December 46 Current Sundry State Payroll Tax Returns 1959 46 Data From 1954 Peruvian Tax 47 Data-Published Report 47 Data re: Dividend Restrictions per Eximbank Agreement at Sundry Dates 47 Data re: Notes Payable 47 Department of Commerce-Bureau of Census 1959 47 Depreciation 1956-1966 47 Empresa Desaguadora de Morococha-Dissolution 1950 Empresa Socavonera Del Cerro de Pasco (Cerro de Pasco Tunnel Company) 47 Constitution & Modifications & Powers of Attorney 1901-1909 47 Contracts-Cerro de Pasco Copper Company 1908-1912 47 Contracts-Cerro de Pasco Mining Company 1908-1912 47 Contracts, Costs, Reports 47 Doyle's Report re: Tunnel Company and Supporting Papers 1907 48 Protocol 48 Estate of Mills Darius Ogden 1908-1912 48 Estate of H. McK. Twombly 1911-1914 48 Eximbank Interest-Capitalization v. Expense 48 Explosives Federal Payroll Taxes 48 Lewmat 48 Rockbestos 48 States: California, Connecticut 48 States: Georgia, Illinois, Indiana, Massachusetts, Michigan, Missouri, New Jersey, North Carolina, Ohio 48 Titan 1959 49 Financial Projection 1963 August 49 Financial Projection 1964 November 50 Financial Projection 1965 February 50 Financial Projection 1965 May 50 Financial Projection 1965 August 50 Financial Projection 1965 November 221 Financial Report-Mr Valentine's Debts and Properties 1903 51 Fire Loss-Oroya 51 Ganadera and Mercantil Operations 1952 51 General Services Administration (Delivery To), Contract-GS-00P-3785 (SCM)-31-34 1957 51 Giroux Consolidated Mines Company- Stock Distribution 51 Giroux Consolidated Mines-Stockholders List 51 W.R. Grace & Company-Estimate of Earnings 1946 51 Graton Tunnel Contract 52 Group Life Insurance 1959 52 Hansen-Holm, Alonso & Company- Audit,Correspondence Concerning Audit Expenses 1959-1960 52 Hospitalization 1959 52 I.B.M. 52 Incentive Compensation 52 Information Returns-Various States 1959 52 Inventories 1970 53 Irving Trust Company-Financial Statements 1958-1959 53 Job Description-Organization Charts 53 Leases, List of 1899-1920 53 Letters of Credit 1907-1909 53 Lybrand, Ross Bros. & Montgomery Consulting Assignment-Warehouse Procedure 1963 53 Management Committee 53 Marketable Securities-Year End Schedule 1963 54 Memorandum of Facts and Opinions Concerning the Cerro de Pasco Mines, by Van Slooten,Description of Areas 1901 54 Metales Industriales Del Peru, South America (METINSA)-General 54 Metalurgica Peruana, South America (MEPSA)-General Mining-Lima, Peru Area 221 Envelope Containing Correspondence, Finacial Records, and a Report 1904, undated 221 Extract of Contract of Sale undated 221 Financial Report-Cuenta de Venta (Account of Sales) 1903 July 17 Morococha Mining Company 54 Cremation Certificate for One Book Capital Stock 54 Dissolution 1917 54 Incorporation 1908 Patents 54 Assignment- Exchange for "Processes of Refining Bismuth" Between Cerro de Pasco & Anaconda Copper for 1/2 Interest in Donahue & Smith-Mach Patents 1930-1931 54 Assignment-Harper & Reinberg, "Refining of Lead Alloys" 1932 54 Assignment-Harper & Reinberg, "Removal of Tin from Lead Containing Tin & Other Impurities 1939 54 Assignment-G.A. Keep, "Electrolytic Deposition of Metals 1930 54 Assignment-G. Reinberg, "Electrolytic Apparatus" 1941 54 Assignment-W.C. Smith re: Bismuth Production-Refining-Concentration 1931-1932 54 License Agreement-American Smelting & Refining, "Garr Silica Gun" 1924 54 License Agreement-Dwight & Lloyd, "Roasting & Sintering Process 1913 54 License Agreement-D.L. Forrester, "Floatation Apparatus" 1926 54 License Agreement-Arthur Hall, "Refining of Lead Bullion" 1931 54 License Agreement-International Precipitation, "Cottrell Processes" 1932 54 License Agreement-A.G. McGregor, "Art of Feeding Powdered Coal to Blast Furnaces" 1922 54 License Agreement-Metals Recovery et al "Flotation Apparatus" 1928 54 License Agreement-Mineral Separation Ltd., "Flotation Processes" 1923 54 License Agreement-Musso & Deppe, "Reduction of Ores-Sponge Iron" 1931 54 License Agreement-Peirce-Smith Converter Company, "Vessels for and Art of Bessermerizing Matte" 1910-1924 55 License Agreement-Peirce-Smith Converter-Old Correspondence (2) 56 License Agreement-U.C. Tainton, "Electrolytic Recovery" 1925 56 License Agreement-U.S. Smelting, Refining & Mining re: Smith-Mack-Donahue Patents 1932 Personnel 56 Addicks Lawrence re: Refinery in England 1919 56 Claims of Employees 1903-1917 56 Employment Agreement 1903-1918 56 Garland, Juan - Account of 1906-1909 56 Kingsmill, Harold - SEverance & Estate Papers 1944-1947 56 Payroll 56 Peruvian Mining Project-Preliminary Agreement 1902 56 Peruvian Negotiations 1973-1974 56 Philadelphia Treble Damage Cases-Brass Mill Products (Civil Suit) 1967 221 Photographs of Mining District with Names of Mines 221 Plano de Las Pertenencias Mineras Cerro de Pasco and One Map 57 Plans and Equipment Additions in New York Office Books 57 Plant and Equipment-New York Books-Transfered to Peru 57 Present Day "Hidden Costs" of Labor 221 Production Report-Estudio Comparativo de Un Lote de 100 Sacos...Venta Simulada en California 1903 September 29 221 Production Report-Memorandum Sobre la Produccion y Cantidad de Mineral de "San Miguel" 1894-1901 57 Progas Limited (an Alberta Company-Audit 57 Progas of Canada 57 Progas of Canada, Inc.-Articles of Association-Stewart Petroleums Ltd. 57 Progas of Canada, Inc. (Consolidated)-Audit 57 Progaas of Canada, Inc. (A Corporation)-Audit Progas of Canada, Inc. 57 By-Laws 58 Canadian Palmer Stendel Oil Corporation 1955 58 Certificate of Incorporation 58 Chase Manhattan Bank - Extension of Loan 1957 58 Chase National Bank 58 Consolidated Coppermines - $100,000 Collateral Loan 1956 58 Director's Meetings - Progas Pipe Lines Ltd.-Notices, Minutes 58 Financing - Consolidated Coppermines Corporatioon-$300,000 Note 58 Financing - Consolidated Coppermines Corporation-$400,000 Debentures 58 Financing - Stock Offering 1954 August 13 58 Lanagus Division - Stewart Petroleums Ltd. 58 Mannix Gill Limited - Stewart Petroleum 59 Proposed Advance by Coppermines 1955 August 59 Reorganization Plans 1957-1958 59 Reorganization Plans 1958 59 Propas Pipe Lines, Ltd. - Audit Properties 59 Appraisal of Cerro de Pasco Mines 1943 January 1 216 Appraisal of Properties-Peru 1908 February 24 59 Contract - Agustin Ariaas & Cerro de Pasco Copper Corporation Concerning Mines 59 Contract Between Cia Minera Santa Inez Y Morococha and Cerro de Pasco Copper Corporation for Exploitation of Santa Inez Mines 1939 March 8 59 Contract for Exploitation and Option to Buy Caceres Mining Properties - Ancash 1939 February 2 59 Contract Between Peruvian Mines Development Corporation and Cerro de Pasco Copper Corporation re: Purchase of Mineral and Coal Claims and Properties in Yauyos 60 Contract of Sale of Three Lots at Oroya to Caja Nacional del Seguro Social 1939 60 Lease and Option to Purchase and Supplemental Agreement Between Cerro de Pasco Mining Company and Aleksandev J. Zanov 1913 60 Letter from Lima to J.B. Haggin re: Properties in Yauli 1905 May 5 60 List of Peruvian Claims Held by Mining Company as of 1910 60 List of Peruvian Deeds Held in New York Office 1951 60 Mortgage Deal - Kearny Property 60 Option (Original) - Huaron Mining Company and Cerro de Pasco Copper Corporation 1926 April 1 60 Ore Reserves (Copper Smelting)-Kingsmill Memorandum 1935 60 Power of Attorney to Convey to Cia Minera Caudalosa Property in Cerro de Pasco District 1934 60 Power of Attorney to Convey Republic of Peru Land in Oroya for Government School and Administration Building 1940 December 3 60 Powers of Attorney 60 Published Report and Chart Material 1955 60 Records - Listing of Old Document Files 61 Refractarios Peruanos, South America (REPSA)- General 61 Registration Statement-Taxes 1961 Reports 221 Cerro de Pasco Railway, 1899, Lima, Peru, By Ernest Thorndike 1903 July 11 221 Informe Presentado Sobre Las Minas de La Sociedad "La Churruca" 221 Memoria de la Sociedad Minera "Alpamina" Ltda. 1903 July 26 221 Report of the Sociedad Minera "Alpamina Limitada" 1903 221 Memoria de la Sociedad Minera Sacracancha Limitada 1903 221 Testimonio No 1512, Dr. Octavio Valentine 1901 November 28 221 Testimonio de la Escritura de Sociedad, Otorgada por Dr. Octavio Valentine 1900 August 29 221 Topographical Plan of the Cerro de Pasco Mining District 1876 June 15 61 Revenue Act 1962-1964 Rio Blanco Copper Corporation Ltd. 61 Draft Amended Tax Return 1950-1956 61 Financial Statements 61 Memoranda, Correspondence re: Possible Expense of Option 61 Memoranda re: Tax Treatment of Amounts Received for Granting of Option 61 Option Agreements with Cerro de Pasco Corporation 61 Tax Returns 1957-1959 61 Va. Annual Report 62 Rockbestos Wire & Cable Company - Hourly Paid Employees 1967-1969 62 Rockbestos Wire & Cable Company - Salaried Employees Retirement Trust 1967-1969 62 Santa Eulalia River Project 1927-1928 62 Santiago Office 1959 62 Schedule of Administration 1951 January-July 62 Sociedad Ganadera de Junin - Dissolution 1950 62 Sociedad Ganadera de Junin - Proof of Depreciation Supported by Haciendas & Cattle Bought by Cerro Sociedad Minera Backus Y Johnston 62 Appointment of Agent in New York 1930-1939 62 A. J. Bennett 1915-1924 63 Cajoncillo Tunnel 63 Casapalca Smelter 1907-1913 63 Casapalca Smelter 1913-1917 63 Claim for Compensation for Bismuth Requisitioned by Board of Economic Welfare 1943 63 Dissolution (Two Folders) 1952 63 Metals-Bismuth Tri-Party Agreement for Development and Stability of European Market 1930-1935 63 Metals-Copper Sales Agreement, Volgelstein & Company, Inc. 1917 63 Minutes of Board Meetings 1916-1921 63 Minutes of Board Meetings 1922-1939 63 Plan of Liquidation 1952 63 Public Deed for Raising Capital to $8,700,000 1950 63 Reorganization 1917 63 Stock Certificates 64 Stock Transactions 1914-1926 64 Taxes (Income) 1919-1920 64 Southern Peru Copper Corporation (SouthCop) - General 64 Stewart Petroleums, Ltd. - Audit 64 Tax Information 1959 64 Tax Insurance and Pension Distribution 1959 64 Taxes - Continuing Data 64 Taxes - United States 1959-1960 65 U.S. Goverment (Cathode) - Master Contract GS-00P-3785 65 Vacation Schedule 1959 65 Valuation - Claims for Discovery 65 Valuation - Mines 1915 October 65 Valuation - New Mines 1924-1929 66 Walker & White Inc. 66 Mr. Waller's Report, Analysis Of, Statements 1946 66 Yauricocha - Tax and Corporate Problems 66 Zinc Sales Analysis 1954 Series V. Administrative and Financial Files Accounts (Final) 67 Backus Y Johnston Company (New Jersey) 1915-1925 67 Backus Y Johnston Company( Lima, Peru) 1922-1951 68 Cerro de Pasco Copper Company 1908-1916 68 Cerro de Pasco Copper Corporation 1915-1951 68 Cerro de Pasco Investment Company 1908-1915 68 Cerro de Pasco Mercantile Company, La Fundicion, Peru 1917 69-70 Cerro de Pasco Mining Company (Three Folders) 1908-1916, 1911 70 Cerro de Pasco Railway Company (Three Folders) 1908-1917, 1911 71 Cerro de Pasco Copper Company, Mining and Railway Companies (Combined) 1909-1910 71 Cerro Corporation, New York Office 1966 January 1 71 Cerro de Pasco Corporation - Final Accounts to Peru 1952-1954 72 Copper Plant, Bettes Plant (Lead), and Anobe Residue Plant (Bismuth) (Two Folders) 1939-1941 72 Morococha Mining Company (Three Folders) 1908-1916 72 Unbilled Sales, CerroSales 1970 Balance Sheet Items 216 Bank Balance 73 Cerro de Pasco - Morococha Companies 1908-1909 February 73 Cerro de Pasco Investment Company 1909 September 30 73 Cerro de Pasco Railway Company 1909 February and September 217 Check Book - Columbia Trust Company, No. 1-17 (Churruca Company) 217 Check Book - Farmers Loan and Trust Company, No. 1001-1261 (Cerro de Pasco Copper Corporation) Consolidated Balance Sheet Items 224 Bank Reconciliation - Cerro Corporation, Miscellaneous Banks, Notebook 1971 224 Bank Reconciliation - Cerro de Pasco-First National City Bank, Notebook 1971 224 Bank Reconciliation - Miscellaneous Companies, Notebook 1971 73 Cerro Cash Statement 1904-1906 225 Cerro Corporation - Monthly Financial Statements, Bound Volumes 1961-1963 73 Cerro de Pasco Mining and Railway (1916 Includes Morococha Mining Company) 1910-1916 224 Cerro Corporation and Subsidiaries, AFE Request and Approval Forms, Bound Volume 1963 73 Cerro de Pasco Corporation - Analysis of Expenses 1947-1948 74 Cerro de Pasco Corporation - Projection of Future Production 1952 75-77 Cerro de Pasco Copper Corporation - Peru Tax Vouchers 1946-1948 74 Cerro de Pasco Corporation - Statement of Cash Throw-Off, Funds provided and Applied 1952-1953 78-79 Cerro de Pasco Corporatioon - Office of the Secretary, Stock Dividends, Nine Bound Volumes 1952-1960 224 CerroCorp - Year End AFE Reports, Bound Volume 1962 226 Cerro de Pasco Corporation - monthly Operating Statements, Two Bound Volumes 1950-1953 74 Cerro de Pasco Corporation - Producer's or registered Dealer's Monthly Return Tax on Transfer of Interests in Silver Bullion 1960-1961 240 Check Register - Peru Disbursements-Credit Memoranda and Journal Entries, Bound Volume 1951-1955 240 Check Register - Peru Disbursements-Morgan, Grenfell & Company Ltd.-Sterling, Bound Volume 1951-1955 Check Vouchers - Cerro de Pasco 226 Bank of Manhattan 1952-1955 227 Banker's Trust Company, Six Bound Volumes 1956 February-December 226 Chase Manhattan Bank, Two Bound Volumes 1956 January-April 228 First National City Bank, Six Bound Volumes 195 January-December 74 Compania Minera Andina, South America-Rio Blanco Project, Summary of Cost and Revenue 1967-1970 217 List of Checks Ddrawn in Chile, First National city Bank, No. 2 Account 1961 217 List of Differences re: Claims Partly Owned by the Cerro de Pasco Mining Company 217 List of New York Office Salaries 1911,1921,1925 217 List of Stockholders - Cerro de Pasco Copper Company 1909 May 17 218 Minutes of Accounting-Tax Conference 1969 June 218 Minutes of Cerro de Pasco Copper Company, Third Annual Meeting of Stockholders 1911 June 5 218 Minutes of Sesion de Junta General Extraordinaria de Accionistas, in Spanish 1952 May 23 80-85 Preliminary Figures (for Final Reports) - Cerro de Pasco Corporation 1951-1963 Profit and Loss Accounts 85 Backus Y Johnston Company 1917 April-June 85 Cerro de Pasco Copper Corporation 1939-1941 December 86 Cerro de Pasco Mining Company and Railway Company, Six Folders 1908-1911 87-92 Cerro de Pasco Mining and Railway Company and Morococha Mining Company 1912-1918 229, 241-242 Rio Blanco Project 1960-1966 93 Statements and Miscellaneous Data re: Tax Hearing, May 4, 1920 - Contains Valuations, Depletion and Depriciation of Cerro de Pasco Properties and RoughDraft and Finished Report Included 1915-1918, 1920 221 Receipt Book with Receipt Stubs for Cerro de pasco Investment Company, No. 1-300 1901-1904 219 Statements Series VI. Legal Files 94 Backus Y Johnston Liquidation: Plan of Liquidation of Sociedad Minera Backus Y Johnston del Peru 94 Backus Y Johnston Liquidation: Assignment of Liquidation for Sociedad Minera Backus Y Johnston del Peru to cerro de Pasco Corporation, One Attachment 1952 May 31 94 The Cerro de Pasco Copper Company, Affidavit of Mailing Notices of Stockholders Meetings plus Attachment 1909 May 28 94 The Cerro de Pasco Copper Company, Certificate of Incorporation 1908 February 19 94 The Cerro de Pasco Copper Company, Certificate of Payment of Capital Stock 1908 March 5 94 The Cerro de Pasco Copper Company, Consent of Stockholders to the Voluntary Dissolution of Said Corporation, Two Copies 1916 August 15 94 The Cerro de Pasco Copper Company, Proxy-Stockholders' Meeting 19009 May-June 94 The Cerro de Pasco Copper Company, Proxy-Stockholders' Meeting 1911 94 Cerro de Pasco Copper Company, Testimony of Finances by Secretary J. Esk. Moller 1908 March 4 94 Companis de inversiones en el cerro de Pasco to Louis T. Haggin-Power of Attorney 1916 June 24 94 The New Land in Regard to Exploitation of Railways in Peru 1918 December 10 94 Supreme Degree in Regard to Construction of Railways in Peru 1919 February 8 Series VII. Ledgers 243 The Backus Y Johnston Company 1916-1917 230 Cerro de Pasco-ADA Oil Program (AD 14-18) 1956 230 Cerro de Pasco-Bank Balance 1955 231 Cerro de Pasco Corporation, Plant and Equipment 1950-1957 244 Cerro de Pasco-Subsidiary Ledger and Assets and Liabilities 1953-1954 245 Cerro de Pasco Copper Company 1908-1916 246-249 Cerro de Pasco Copper Corporation - General Ledger, Nos 1,2,3 and 5 1917-1952 250 Cerro de Pasco Copper Corporation - Inventory Record 1949-1951 251-253 Cerro de Pasco Copper Corporation - Subsidiary Ledger, Nos 1-3 1929-1951 236 Cerro de Pasco Corporation (New York), Oil and Gas Division, General Ledger 1960 254 Cerro de Pasco Investment Company 1908-1915 230,255 Cerro de Pasco Mining Company 1901-1914 256-257 Cerro de Pasco Mining Company, Nos 1-2 1906-1917 94 Cerro de Pasco Mining Company-Drafts Drawn on New York Office by Lima Office 1914-1917 258 Cerro de Pasco Mining Company, New York Payments on Account of Lima Office 1905-1912 259-262 Cerro de Pasco Railway Company (Includes Trial Balance) 1903-1953 94 Cerro de Pasco Railway Company - Outstanding Checks 1903-1904 263 Cerro de Pasco Railway Comapny - Voucher Register 1922 January-December 375 Cerro de Pasco Sales Corporation - Sale Register (Shipments) 1957 233 Cerro de Pasco and Wholly Owned Subsidiaries, Bank Balance 1957 232 CerroCorp-ADA Oil-Louisiana and East Texas (Baur Ibraham) 1958 230 CerroCorp - General Ledger 1959 232 CerroCorp-Gulf Coast Program-South Louisiana, Illinois and S.W. Illinois 1957 232 CerroCorp-Oil and Gas-ADA Cerro 1965 232 CerroCorp-Oil and Gas-ADA Oil, Cerrex, South Louisiana 1960 264 CerroCorp-Subsidiary Ledger 1957-1958 265 CerroDel-Subsidiary Ledger 1958 266-268 Cerro-Peru-Cash Disbursements Journal, Three Volumes 1966, 1969 269-271 Cerro-Peru-unbilled Sales Register 1970-1972 233 Cerro Sales Corporation-Accounts Receivable, Two Notebooks 1967-1971 272 Cia. Minera Andina, South America-Fundos 1966-1968 273 Cia. Minera Andina, South America-General Ledger 1970 December 31 274 Cia. Minera Andina, South America-General Ledger 1971 June 275 Gollarisquisa Coal Mine, Quishuarcancha Coal Mine, and Vinchuscancha Coal Mine 1905 January-August 275 Mines Owned in Partnership-Month Statements 1901-1908 274 Morococha Mining Company 1914-1917 94 Rio Blanco Copper Corporation Ltd. 1926-1940 234 Voucher Register-Peru 1955 Ledger-Bills Payable 94 Cerro de Pasco Corporation, No. 1 1902-1905 94 Cerro de Pasco Investment Company 1905-1906 Ledgers-Cash Books 277 Cerro de Pasco Copper Company 1908-1917 Cerro de Pasco Copper Corporation 277 No. 1 1915-1917 278 No. 2 1917-1918 279 No. 3 1918-1919 280 No. 4 1919-1920 281 No. 5 1920-1921 282 No. 6 1921 January 31-November 3 283 No. 7 1921-1922 284 No. 8 1922-1923 285 No. 9 1923-1924 286 No. 10 1924 January 26-September 29 287 No. 11 1924-1925 288 No. 12 1925-1926 289 No. 13 1927 January 26-August 23 290 No. 14 1926-1927 291 No. 15 1927 February 28-September 23 292 No. 16 1927-1928 293 No. 17 1928 April 17-October 30 294 No. 18 1928-1929 295 No. 19 1929 May 1-October 31 296 No. 20 1929-1930 297 No. 21 1930-1931 298 No. 22 1931-1932 299 No. 23 1932-1933 300 No. 24 1933-1934 301 No. 25 1934-1935 302 No. 27 1936-1937 303 No. 28 1937 February 1-September 9 304 No. 29 1937-1938 305 No. 30 March 18-December 5 306 No. 31 1938-1939 307 No. 32 1939-1940 308 No. 33 1940 April 23-December 31 309 No. 34 1941 January 2-September 19 310 No. 35 1941-1942 311 No. 36 1942-1943 312 No. 38 1944-1945 313 No. 39 1945-1946 314 No. 40 1946-1947 315 No. 41 1947 February 27-December 17 316 No. 42 1947-1948 317 No. 43 1948-1949 318 No. 44 1949-1950 319 No. 45 1950-1951 320 No. 46 1951-1952 321 Cerro de Pasco Investment Company 1901-1905 321 Cerro de Pasco Investment Company (New York Office) 1901-1905 322 Cerro de Pasco Mining Company, No. 1 19006-1908 323 Cerro de Pasco Mining Company, No. 2 1909-1911 324 Cerro de Pasco Mining Company, No. 3 1911-1912 325 Cerro de Pasco Mining Company, No. 4 1913-1914 326 Cerro de Pasco Mining Company, No. 5 1914-1915 327 Cerro de Pasco Mining Company, No. 6 1915-1916 328 Cerro de Pasco Mining Company, No. 7 1916-1917 329 Cerro de Pasco Mining Company, No. 8,(Balance Carried over to Cerro de Pasco Copper Corporation Cash Book) 1917 June 29-October 30 234,330 Cerro de Pasco Mining Company, Lima, Peru-Gold Account, Three Volumes 1901-1906 331-333 Cerro de Pasco Mining Company-New York Office, Nos. 1-3 1906-1909 334-338 Cerro de Pasco Railway Company, Nos 1-5 1908-1954 95 Consolidated Coppermines Corporation 1922-1930 339 Consolidated Coppermines Corporation 1958 January 2-July 8 95 Giroux Consolidated Mines Company 1944-1953 95 Mines Trading Company, Ltd. 1959-1965 340 Morococha Mining Company, (Balance Carried over to Cerro de Pasco Corporatioon Cash Book) 1908-1917 341-345 Unidentified Cash Books, 1-5 1916-1930 Ledgers-Depreciation 346 Cerro de Pasco Copper Corporation 1915-1949 347 Cerro de Pasco Railway Company 1906-1943 Ledger-Exploration 234 Exploration Ledger 1959-1960 Ledgers-Journals 348 The Backus & Johnston Company 1916-1925 349 Cerro de Pasco Copper Company, No. 1 (One Page Full) 1908 February 21 350 Cerro de Pasco Copper Company, No. 2 1908-1917 96 Cerro de Pasco Copper Company, Loose Pages 1908-1910 Cerro de Pasco Copper Corporation 351 1915-1917 352 1917-1922 353 1922-1927 354 1927-1932 355 1933-1939 356 1939-1945 357 1945-1950 358 1950-1951 359 Cerro de Pasco Investment Company 1902-1916 96 Cerro de Pasco Investment Company, Loose Pages 1908-1910 235 Cerro de Pasco Mining Company 1901-1908 361 Cerro de Pasco Mining Company 1908-1913 362 Cerro de Pasco Mining Company, Balance Carried Over to Cerro de Pasco Copper Corporation Journal 1913-1917 96-97 Cerro de Pasco Mining Company, Loose Pages 1908-1910 237 Cerro de Pasco Railway Company, No. 1 1904-1907 363 Cerro de Pasco Railway Company, No. 2 1908-1931 364 Cerro de Pasco Railway Company, No. 3 1932-1950 97 Cerro de Pasco Railway Company, Loose Pages 1908-1910 95 Consolidated Coppermines Corporation 1956-1957 365 Morococha Mining Company,Blance Carried over to Cerro de Pasco Copper Corporation Journa 1908, 1917 97 Morococha Mining Company, Loose Pages 1901,1908, and 1910 95 Rio Blanco Copper Corporation Ltd. 1924-1939 Ledger-Sterling Cash Books 236 Cerro de Pasco Copper Corporation, Nos. 2-4 1935-1947 237 Cerro de Pasco Copper Corporation, Nos. 5-6 1947-1973 Ledgers-Trial Balance 366 The Backus & Johnston Company 1916 January-December 367 Cerro de Pasco Mining Company, Lima, Peru 1902-1906 368 Unidentified Ledger 1904-1907 Series VIII. Notebooks 98 Cerro Copper and Brass Company-Stamford Works, Reports, Memoranda and Correspondence 1964-1969 238 Cerro de pasco Corporation, Cost Index 1955, 1957-1958 98 CerroDel, Silver Tax Returns 1958-1959 98 Churruca Company, Articles of Agreement and Association, Minutes of Meetings, Stockholder Instructionns and General Method of Procedure 98 Consultant Services for Cerro Corporation, Two Notebooks 1955-1965 99 Lewin-Mathes Company, Division of Cerro de Pasco Corporation, Tax Calendar 1959 99 Morgan, Grenfell and company, Ltd, Lima Account 1939-1940 100 Record of Correspondence 1901-1906 Series IX. Manuscripts and Printed Material 220 "Address Before the Annual Dinner of the London Metal Exchange," by Robert P. Koening 1969 October 28 220 Article - "An American Looks at British Coal," by R.P. Koening 1948 January 220 Book - "Viajando por la Republica"-las Grandes Negociaciones Mineras del Peru-la Cerro de Pasco Mining Co. 220 Calling Card of Robert P. Koening, President, Cerro Corporation 217 Directory - Lybrand, Ross Bros. & Montgomery 1972 220 Leaflet - "A Cerro Report on the Rio Blanco, Copper Mine Project, Aconcagua Province, Republic of Chile" 217 Manual - Cerro de Pasco Corporation, Chart & Manual of Accounts & Procedures for Callao Office, Two Copies 1953 217,218 Manual - Cerro de Pasco Corporation, Chart & Manual of Accounts & Procedures for Lima Division, Two Copies undated 218 Manuscript - "Considerations with Respect to Reserve Contingencies 218 Manuscript - "Memoranda on Reserves for Contingencies and Percentage Depletion in Published Statements 220 Manuscript - Trant Colley's Narration on his Recollection of the Early History of Cerro de Pasco Copper Corporation 218 Map of Lima, Peru 1916 218 Newsletter - Antamina 1957 August, December 218 Newsletter - Compania Minera Andina, South America-Rio Blanco Project 1968-1970 218 Newspaper - "The Inca Chronicle," Vol. 1, No. 23 1909 September 25 219 Newspaper Clippings in English and Spanish 220 Notes - No. 16, M.C. McNulty's Notes on the Ownership of the Cerro de Pasco Mines and Amalgamating Haciendas Pamphlets 220 40th Reunion Dinner Harvard Class '24, "The Road Ahead" by Robert P. Koening 1964 June 11 220 Address to Boston Section of American Institute of Mining and Metallurgical Engineers at Massachusetts Institute of Technology, by Robert P. Koening 1960 April 4 220 Commencement Address by R.P. Koening before Montana School of Mines 1958 June 2 219 Cerro de Pasco Copper Corporation and Columbia Trust Company, "Indenture," The Evening Post Printing Office 1921 January 1 220 "Ore, Avalanches and Water," by Robert P. Koening 220 Remarks to Copper and Brass Warehouse Association, Hollywood Beach, Florida, by Robert P. Koening 1962 April 4 220 "Some Comments and Observations on the Education and Training of Mining Engineers," made by Robert P. Koening at the 32nd Annual Dinner of Royal School of Mines Association 1966 November 3 220 Speech by R.P. Koening at the Dedication of the 5,5000 Ton Extrusion Press at the Bellefonte Works, cerro Copper and Brass Company 1967 November 15 219 "The Story of Circle Wire & Cable Corporation," A subsidiary of Cerro de Pasco Corporation 1955 220 "Vertical Integration in Mining Industry," by R.P. Koening, the Sixth Sir Julius Wernher Memorial Lecture of the Institution of Mining and Metallurgy 1964-1965 219 "What Mining Means to the United States, American Mining Congress 1972 March Paperback Books 100 The Cerro de Pasco Tunnel Company and Its Rights, Libreria E Imprenta Gil, Lima, Peru, English and Spanish 19007 100 Defensa de la Cerro de Pasco Mining Company, Imprenta La Industria, Lima, Peru 1907 100 Empresa Socavonera Del Cerro de Pasco, Prospecto Para la Empresa de Desague, Librreria e Imprenta Gil, Lima, Peru 1900 100 Memoria Que la Comision Directiva de la Empresa Socavonera Del Cerro de Pasco, Libreria e Imprenta Gil, Lima, Peru 1908 100 Memoria Que la Comision Directiva Presenta a la Junta General Ordinaria, Report Submitted by the Board of Directors of the Cerro de Pasco Tunnel Company to the General Shareholders , Libreria e Imprenta Gil, Lima, Peru, Spanish Copy with English Translation 1905 219 Periodical - "Intermet Bulletin," No. 3, Vol. 1 1972 January Proceedings 221 Mining and Metallurgical Society of America, Vol. 12, 14-17 1919,1921-1924 222 Mining and Metallurgical Society of America, Vol. 18-21,23-30,and 49-54 1925-1961 223 Mining and Metallurgical Society of America, Vol. 55-56 1962-1963 223 Mining and Mettalurgical Society of America, 25th Anniversary Index 1908-1933 219 Report - "Peru's Expropriation of Cerro de Pasco Corporation," by Lester Ziffren 1974 219 Report of a Study , Projects of Law from the Office of Consejo Superior de Mineria, Lima, Spanish with English Translation 1915 May 31 Reports 223 Miscellaneous Geological Reports on the Cerro de Pasco Mining District and on the Morococha Mining District, Peru, Cerro de Pasco Copper Corporation, Bound 1920 223 Report on the Geology, Ore Deposits, and Prospects of the Property of the Cerro de Pasco Copper Corporation, Cerro de Pasco, Peru, Bound 1920 223 Report on the Geology, Ore Deposits, and Prospects of the Property of the Cerro de Pasco Copper Corporation, Morococha, Peru, Bound 1920 220 "Third Progress Report," American Committe of Engineers in London 1918 February 1 Series X. Prospectus (Stock) & Stock Applications 216 Cerro de Pasco Corporation 1954 216 Cerro de Pasco Corporation 1959 March 25 100 Cerro Corporation-Common Stock 1961 September 100 Cerro de Pasco Corporation, 8,026,200 1959-1960 100 Cerro de Pasco Corporation, 8,140,200, Assets of Consolidated Coppermines Corporation 1959 March 25 371 Certificates of Stocks and Bonds - Cerro de Pasco Copper Corporation, Gold Bonds, No. R251-R500 372 Certificates of Stocks and Bonds - Cerro de Pasco Investment Company, No. 1-250 373 Certificates of Stocks and Bonds - Cerro de Pasco Mining Company, No. 1-500 374 Certificates of Stocks and Bonds - Churruca Company, No. 5-9, 11-22, 24-41, 46, and 110-200 374 Certificates of Stocks and Bonds - Churruca Company, A1-A100 216 Certificates of Stocks and Bonds - Morococha Mining Company, No. 1-100 216 Listing Application to New York Stock Exchange, Cerro Corporation, Two Copies, 1961 June 6 100 Rio Blanco Copper Corporation, Ltd., Exchange of Stock 1960 March-May Series XI. Registration Statements Securities and Exchange Commission-Cerro Corporation 101 Amendment No. 1 to Post-Effective Amendment No. 2, Reg. No. 2-14793 1960 April 29 101 Amendment No. 1- Reg. No. 2-16409 1960 April 29 101 Amendment No. 1- Reg. No. 2-18740 1961 September 1 101 Amendment No. 2, Reg. No. 2-14793 1959 March 25 101 Amendment No. 2, Reg. No. 2-18740 1961 September 7 101 Form 8-A undated 101 Form S-1, Reg. No. 2-14793 1959 March 101 Post-Effective Amendment No. 1-Reg. No. 2-14793 1959 December 101 Post-Effective Amendment No. 2, reg. No. 2-14793 1960 March 30 101 Post-Effective Amendment No. 3-Reg. No. 2-18740 1961 September 28 101 Reg. No. 2-18740 1961 August 24 Series XII. Reports (Financial) 101 Annual Report, Cerro Corporation 1971 101 Annual Report, Cerro de Pasco Corporation and Cerro de Pasco Railway Company 1917-1920 101 Annual Report, Cerro de Pasco Copper Corporation and Subsidiary Companies, Two Copies 1921-1943 102 Audit Report, Cerro de Pasco Corporation-Lima 1954-1955 Balance Sheets 237 Cerro Oil & Gas Corporation, Includes Profit and Loss Accounts 1965-1968 102-103 Cerro de Pasco Copper Corporation, Consolidated Balance Sheets 1908-1942 103 Cerro de Pasco Corporatioon, Consolidated Balance Sheet and Income Accounts 1953-1956 103-104 Cerro de Pasco Copper Corporation and Its Wholly Owned Subsidiaries, Consolidated Balance Sheet 1938-1954 105 Cerro de Pasco Investment Company 1908-1916 105 Cerro de Pasco Mining Company 1907-1917 105 Cerro de Pasco Railway Company 1908-1941 105 Compania Minera Andina, South American (Rio Blanco Project) 1967-1970 105 Empresa Desaguadora de Morococha 1940-1941 105 Morococha Mining Company 1908-1917 106 Sociedad Ganadera de Junin 1940-1941 106 Sociedad Minera Backus & Johnston del Peru, Two Copies 1940 December 31 106 Walker and Whyte, Inc., Statement of Operations and Balance Sheet 1929-1939 Cost Sheets 103-107 Cerro de Pasco Corporatioon-Almacen Department 1956-1957 107 Cerro de Pasco Corporation, with Revised Report 1934 108 Cerro de Pasco Department, Financial 1956-1957 108-116 Cerro de Pasco Copper Corporation, Lima, Peru 1908-1958 118 Cerro de Pasco Corporation, Morococha Mining Department 1915-1921 118-126 Cerro de Pasco Corporation-Oroya Department (CerroDel) 1953-1958 126-127 Cerro de Pasco Corporation-Oroya Department Preliminary Cost Report, Also AFE Expenditures 1955-1958 127 Cerro de Pasco Copper Corporation and Annual Report 1930 November-December 127 Cerro de Pasco Corporation, Servicio de Eucaliptus-Huancayo, in Spanish 1957 January-December 127 Cerro de Pasco Corporation, Yauricocha-Financial, in Spanish 1957 January-November 128 Cerro de Pasco Corporation, Yauricocha-Mine Operations, in Spanish 1956 January-November 128 Cerro de Pasco Mining Company, Cost Sheets for Carmen, Diamante, Nuruego, and Pena Blanca Mines 1904 December 168 Cerro de Pasco Mining Company, Peru-Mining Department 1905 January-December 128 Cerro de Pasco Mining Company 1908 February 128 Cerro de Pasco Mining Company, Coal Mining Department-Goyllarisquisga 1908-1918,1956-1957 129 Cerro de Pasco Mining Company, Coal Mining Department-Quisharcancha 1914,1917,1918 129 Cerro de Pasco Mining Company-Hydro Electric Department 1917 December 129 Cerro de Pasco Mining Company-Mining Department 1908-1911, 1917 December 130 Cerro de Pasco Mining Company-Smelting Department 1908-1923 131 Compania Minera Andina, South America-Chilean Reports 1968-1969 369 Compania Minera Andina, South America-Consolidated Cost Report 1970 December 370 Constructora Emkay, South America-Monthly Construction Cost Report 1969-1970 132 Copper-Silver Bismuth Costs 1931-1942 137-140 Details of Monthly Payrolls, Cerro de Pasco Corporation, All Departments 1925-1957 133 Empresa Desaguadora de Morococha 1917-1929 140-144 Executive Report, Dollar and Metallurgical Results, La Oroya, Peru 1948-1958 145 Geological Report, Cerro de Pasco Corporation, Morococha Division, Geological Department (Maps Included) 1926-1933 117 Mahr and San Cristobal, Financial Cost Sheet 1956-1957 133-134 Morococha Mining Company, Morococha-Mine Operations, Financial and Concentrator Operations 1955-1957 135 Sociedad Minera Backus & Johnston del Peru, Mining Department, Morococha 1919-1922 135-136 Sociedad Minera Backus & Johnston del Peru, Casapalca, Peru-Mining Costs, Sundry Statements, and Mining Costs 1917-1933 136 Sociedad Minera Backus & Johnston del Peru, Casapalca, Peru-Smelting Costs 1917-1922 Inventories 145 AFE Inventory Account 1954 October 31 145 Almacen Department, Inventory of General Deposit at La Oroya 1948, 1951 146 Cerro de Pasco Copper Corporation, Cerro Mining Department 1948 December 31 146 Cerro de Pasco Corporatioon, Cuajone Supply Stock, Three Copies 1954 october 31 146 Cerro de Pasco Corporation, Ganadera Department, Three Copies 1954 October 31 146 Cerro de Pasco Corporation, Ganaderia Department-Panaderia, and Salchicheria 1954 October 31 146 Cerro de Pasco Copper Corporation, Goyllarisquisga Coal Mines Department-Supply Department Inventory 1948, 1954 146 Cerro de Pasco Corporatioon, Jatunhuasi Coal Mines Supply Department 1954 October 31 146 Cerro de Pasco Copper Corporation, Julcani Supply Department 1948 December 31 147 Cerro de Pasco Corporation, Mahr Tunnel 1954 September 30 147 Cerro de Pasco Corporation, Morococha Mining Department 1954 September 30 147 Cerro de Pasco Copper Corporation, Oroya Construction 1919 147-149 Cerro de Pasco Corporation, Oroya Supply Department 1952,1954 149-150 Cerro de Pasco Copper Corporation, Paucartambo Power Project-General Stock Inventory 1954 July-August 150 Cerro de Pasco Copper Corporation, Railway Department 1922 150 Cerro de Pasco Corporation, Supplies for Corporation Hospitals Inventory 1954 151 Cerro de Pasco Copper Corporation, Quishuarcancha Coal Mines-Warehouse 1922 December 31 151 Cerro de Pasco Corporation, Vado Warehouse 1954 July, October 151 Cerro de Pasco Corporation, Yauricocha Mine Supply 1948, 1954 152 Cerro de Pasco Railway Company, Material Inventory, Charged-Out Operations Supplies, and Physical Inventory 1954 September-October 152-153 Sociedad Ganadera de Junin, Inventory of Bodegas and Mercantiles 1948, 1951 152-153 Sociedad Minera Backus & Jonhston 1923-1925, 1929 153 Veterinary Medicines 1954 August 31 153 Metallurgical Balance, La Oroya, Peru 1951 Metallurgical Reports 154 Cerro de Pasco Copper Corporation, Oroya Department 1928 December 154-168 Cerro de Pasco Copper Corporation, Oroya Smelter Department, Some Preliminary and Final 1922-1958 167-168 Cerro de Pasco Copper Corporation, Smelting Department 1917, 1919-1921 168 Cerro de Pasco Mining Company, Smelting department, La Fundicion, Peru 1910, 1917, and 1922 168 Sociedad Minera Backus & Johnston del Peru 1917-1922 Operating Reports 169-170 Cerro de Pasco Copper Corporation, Financial and Operating Report 1930-1949 171 Cerro de Pasco Copper Corporation, Cerro de Pasco Railway Company, and Sociedad Minera Backus Y Johnston del Peru 1939 June 30 171 Cerro de Pasco Copper Corporation, Almacen Department 1930-1954 172 Cerro de Pasco Copper Corporation, Callao 1930-1957 173-174 Cerro de Pasco Copper Corporation, Casapalca (Leased Ores) 1938-1942, 1948, 1951 174 Cerro de Pasco Copper Corporation, Cerro de Pasco 1952 174 Cerro de Pasco Copper Corporation, Cerro de Pasco Mercantile Company 1911-1929 175-182 Cerro Mining Department 1918-1953 174 Cerro de Pasco Corporation, Cerro de Pasco Railway Company 1932-1957 182-183 Cerro de Pasco Corporation, Cuajone Drilling Project 1953-1954 183 Cerro de Pasco Corporation, La Fundicion Department 1924-1927 184-185 Cerro de Pasco Copper Corporation, Ganadera Department, Pachacayo, Peru 1951-1953 186-189 Cerro de Pasco Copper Corporation, Goyllarisquisga Coal Mining Department 1919-1954 189-190 Cerro de Pasco Copper Corporation, Goyllarisquisga Department-Engineers Annual Report 1925-1928 189-190 Cerro de Pasco Copper Corporation, Hydro-Electric, Oroya Department 1919-1951 190 Cerro de Pasco Corporation, Julcani 1949,1951 191-192 Cerro de Pasco Corporation, Mahr-Peru 1930-1951 192-197 Cerro de Pasco Copper Corporation, Morococha Mining Department 1919-1952 197-199 Cerro de Pasco Corporation, New Construction-All Camps 1950-1952 199-201 Cerro de Pasco Corporation, Oroya Construction 1919-1923 201-203 Cerro De Pasco Copper Corporation, Oroya Department 1922-1946 204 Cerro de Pasco Copper Corporation, Pacos Pyrite 1929 December 205 Cerro de Pasco Copper Corporation, Paucartambo 1952, 1956-1957 206 Cerro de Pasco Corporation, Quishuarcancha Coal Mining Department 1919-1922, 1924 207 Cerro de Pasco Copper Corporation, San Cristobal 1953 February, April 208-209 Cerro de Pasco Corporation, Yauricocha 1948,1951, 1952-1954 209-211 Cerro de Pasco Railway Company, Reports and Accounts 1908-1951 212 Morococha Mining Company 1917-1918 December 212 Sociedad Minera Backus Y Johnston del Peru, Sociedad Ganadera de Junin, and Empresa Desaguadora de Morococha, Financial and Operating Report 1939-1944 212 Sociedad Minera Backus Y Johnston del Peru, Mercantile Department, Casapalca 1925,1927,1931 212 Sociedad Ganadera de Junin Department 1925-1948 213-214 Ores Estimate Report, Cerro de Pasco Owned Smelting Grade Copper and Silver Sulfide 1928, 1939 213-214 Ores Estimate (Annual Report), Morococha, Peru, Geological Department, Some Maps Included 1919-1930, 1932, 1933 215 Information Report, Cerro de Pasco Copper Corporation 1928 September 11 215 Property Report, Cerro de Pasco Corporation, Properties in Peru, Declared Value 1940-1941 215 Report of Diamond Drilling Operations in the Cerro de Pasco, Goyllarisquisga and Quishuarcancha Mines 1913 215 Sales, Production and Sundry Statistical Data 1945 May 9 215 Securities Holdings Report, Cerro de Pasco Corporation 1940-1941 215 Taxation Report, Cerro de Pasco Copper Corporation, Geological Department 1924-1932 215 Trial Balance, Cerro de Pasco Copper Company, Copper Corporation, Investment, Mining and Railway Companies, and Morococha Mining Company 1916 215 Wool Clip-Consolidation of the Ganadera 1951 220 Report of Thomas H. Harrison on the Proposed New Audit at Cerro de Pasco Series XIII. Audiovisual and Photographic Material Glass Slides 216 Geological Map of Peru, South America, One, Color 216 Map-Cerro Properties in Peru, One, Black & White 216 Topographic Map of Peru, One, Color 216 Topographic Map of Peru with Cities, One Regular Slides 216 Paucartambo Hydroelectric Power Plant, 44, Color 216 Unidentified Aerial View, One 216 Unidentified Harbor, One 216 Unidentified Mining Operation, Two 376 Reel-to-Reel - "Dedication of Paucartambo Hydroelectric Power Plant" undated 377 Reel-to-Reel - "Wealth of the Andes" undated