Collection contains stock certificates from mining companies, land and real estate companies, oil companies and businesses located in the western United States. Some of the companies represented in the collection include: Bertha Gold Mining Company (1910), United Eastern Mining Company (1920, 1925), Gold King Mines Company (1917, 1919), Little Rule Mining Company, Matchless Gold Mining Company, Moccasin Mountain Mining and Milling Company (1920), Tabor Mines and Mining, Macomb Land Company, Great Western Motor Company, Routt County Development Company, Warkick Downing (1895-1933), The Denver Real Estate and Stock Exchange, Denver Circle Railroad Company (1888), Skyline National Bank (1971), Pan American World Airways, Inc. (1968-1991).
