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Photograph

Single Helical Gear Train

Date: 1951
Description: Single helical gear train that is a component of a gold mine hoist. This unit was purchased and used by Homestake Mining of Lead, South Dakota. Falk captio...
Photograph

Clay Model of Truck

Date: 1951
Description: Side view of a full-size rendering of an International truck in clay. The model is located inside a garage or studio space. The model was likely made by a...
Magazine or Periodical

Cover of American Machinist

Date: 1951
Description: The cover of an issue of American Machinist (issued on August 20, 1951). A man is operating a machine.

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