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Drawer 1-22

 Container

Contains 1 Result:

Calumet and Hecla Mining Companies Drawings Collection

 Collection — Multiple Containers
Identifier: MS-005
Abstract Drawings, 1871-1970, of the Calumet and Hecla Mining Companies. Contains hand sketches, tracings, blueprints and related manuscript items as well as a card index created by the company. Includes more than 80,000 engineering and architectural drawings gathered by the Calumet and Hecla Mining Company during its active life as a copper mining company in Michigan’s Keweenaw Peninsula. Much of the machinery was built in-house at Calumet and Hecla and they also had need of maps of both aboveground...
Dates: 1871-1970