Calumet and Hecla Mining Company
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Report (Calumet and Hecla Mining Company, 1911), by Calumet and Hecla Mining Company (page images at HathiTrust)- Michigan copper district strike. (Govt. Print. Off., 1914), by United States Department of Labor, Royal Meeker, John A. Moffit, John B. Densmore, and Walter B. Palmer (page images at HathiTrust)
- Calumet and Hecla Mining Company (Edward B. Smith, 1923), by Edward B. Smith & Company (page images at HathiTrust)
- Romances of the world's great mines: III-Calumet and Hecla (1903), by Samuel E. Moffett (page images at HathiTrust)
- Strike in the copper mining district of Michigan. Letter from the secretary of labor, transmitting in response to a Senate resolution of January 29, 1914, a report in regard to the strike of mine workers in the Michigan copper district which began on July 23, 1913. ([Govt. print. off.], 1914), by United States Department of Labor, John A. Moffitt, John B. Densmore, Walter B. Palmer, and United States Bureau of Labor Statistics (page images at HathiTrust)
- Summary of the operations (Calumet and Hecla Mining Company, in the 19th century), by Calumet and Hecla Mining Company (page images at HathiTrust)
- Annual report (Calumet and Hecla Mining Company, 1907), by Calumet and Hecla Mining Company (page images at HathiTrust)
- To the stockholders of Osceola Consolidated Mining Company. (s.n.], 1910), by Osceola Consolidated Mining Company (page images at HathiTrust)
- The founding of the Calumet & Hecla Mine : 1866-1916. ([publisher not identified], 1916) (page images at HathiTrust)
- Calumet & Hecla Mining Co. : semi-centennial edition, Keweenaw Miner, 1866-1916. (Keweenaw Printing Co., 1916), by Keweenaw Miner (page images at HathiTrust)
- To the stockholders of the Calumet and Hecla Mining Company. (The Company], 1910), by Calumet and Hecla Mining Company (page images at HathiTrust)
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