Box D
Contains 3 Results:
Old Compressors and Cornish Pumps
Media collection, circa 1954-circa 1961, of the Calumet and Hecla Mining Company. Includes audio and moving image recordings documenting copper mining and manufacturing, the Osceola unwatering project, union/labor relations, community events, safety awareness and work procedures, and agriculture.
Eastman Plates
Media collection, circa 1954-circa 1961, of the Calumet and Hecla Mining Company. Includes audio and moving image recordings documenting copper mining and manufacturing, the Osceola unwatering project, union/labor relations, community events, safety awareness and work procedures, and agriculture.
Engineering Drawings featuring C & H
Media collection, circa 1954-circa 1961, of the Calumet and Hecla Mining Company. Includes audio and moving image recordings documenting copper mining and manufacturing, the Osceola unwatering project, union/labor relations, community events, safety awareness and work procedures, and agriculture.