University of Arizona

Assay Certificate for Spenazuma Mining and Milling Company Assay and Chemical Laboratories, 1899

Assay Certificate for Spenazuma Mining and Milling Company Assay and Chemical Laboratories, 1899

Assay Certificate for Spenazuma Mining and Milling Company Assay and Chemical Laboratories, Spenazume, Arizona, 1899

Collection: Records of the Spenazuma Gold Mining and Milling Company