Public domain
Production. Pratt and Whitney airplane engines. They'll soon be adding to the power of our mighty American air forces. Rough forgings for the master piston rods of Pratt and Whitney motors are ready for the fine machining that will transform them into the precision-made engine parts that account lar
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Pratt and Whitney airplane engines. They'll soon be adding to the power of our mighty American air forces. Rough forgings for the master piston rods of Pratt and Whitney motors are ready f. 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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