Public domain
Production. Pratt and Whitney airplane engines. Single-row crankshaft assemblies for Pratt and Whitney airplane engines. The large Eastern plant at which the work is done is producing a steady flow of power installations for the fighting craft of our Army and Navy air forces. Pratt and Whitney Aircr
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Credit lineProduction. Pratt and Whitney airplane engines. Single-row crankshaft assemblies for Pratt and Whitney airplane engines. The large Eastern plant at which the work is done is producing a steady flow of. 1942-01-01. United States. Office Of War Information, Feininger, Andreas. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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