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Photograph

Man Inspecting Cannon Barrels

Date: 1945
Description: Factory worker Oscar Olsen uses a borescope to inspect 20mm cannons at International Harvester's St. Paul Works.
Photograph

Clamping a Cannon Barrel at St. Paul Works

Date: 1945
Description: Factory worker James Matzke clamps the barrel of a 20mm cannon at International Harvester's St. Paul Works.
Photograph

Cannon Inspection at St. Paul Works

Date: 1945
Description: Factory worker James Matzke raises the barrel of a 20mm cannon onto a receiving block to be inspected by Beverly Ackerman at International Harvester's St. ...
Photograph

20mm Cannon Construction

Date: 1945
Description: Factory worker William Nolan works on the final assembly of a 20 mm cannon before proof firing at International Harvester's St. Paul Works.
Photograph

20mm Cannon Production at St. Paul Works

Date: 1945
Description: Factory worker Emil Borchert grinds the shell receiver end of the barrel of a 20 mm cannon at International Harvester's St. Paul Works.

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