MS-638, Calumet and Hecla Mining Company Stereographs, Michigan Technological University Archives and Copper Country Historical Collections, Houghton, Michigan.
Cite Item Description
MS-638, Calumet and Hecla Mining Company Stereographs, Michigan Technological University Archives and Copper Country Historical Collections, Houghton, Michigan. https://michigantech.libraryhost.com/repositories/2/resources/307 Accessed November 21, 2024.
