Public domain
Twenty-millimeter machine guns for planes. Another machine is skidded into place in a converted auto plant to swell the production of machine guns for the Air Corps. Oldsmobile, Lansing, Michigan
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Credit lineTwenty-millimeter machine guns for planes. Another machine is skidded into place in a converted auto plant to swell the production of machine guns for the Air Corps. Oldsmobile, Lansing, Michigan. 1942-01-01. United States. Office For Emergency Management, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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