The Harper Consolidated Mines album appears to be have been compiled in 1912 as a resource to promote a proposed, new mining company to potential investors. The material is contained in a standard commercial photograph album and includes nineteen typescript documents, fourteen affixed photographs (two of which are cyanotypes), as well as seven loose photographs documenting activities at Republic Camp in Ferry County, Washington.
This collection contains information about Oregon Quicksilver Incorporated and Mines Service Incorporated, both located in Oregon. The collection contains superintendent's reports, timecards, stocks, invoices, correspondence, photographs, and legal documents. Also contained in this collection is information about the Prosperity Mine and the Bonanza Bar in the form of placer claims, drawings of locations, legal documents and notes.