Box 8
Contains 41 Results:
Calumet and Hecla Random Sample Analyses , 1963
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla Proposal for Installing Semi-Continuous Casting , 1960
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla Furnace Bottoms , 1946-1957
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla Pelting Tests , 1956-1960
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla Mohawhite , 1958
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla Selenium Native Copper Ores , 1954-1958
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla D. L. P. Copper Billets
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla No. 20 Furnace Rebuilding , 1956
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla Smelting , 1959
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.
Calumet and Hecla Met Reports Monthly , 1963
Papers, 1906-2002, collected by Bill Stewart relating to the "Keweenaw Venture" joint operation between Homestake Copper Company and International Nickel Company. Also includes documentation from Stewart Holdings, Peninsula Copper Industries, Great Lakes Minerals, and several other mining initiatives.