Public domain
Production. Pratt and Whitney airplane engines. A power section assembly is lowered to blower case assembly as another Pratt and Whitney airplane engine begins to take form at a large Eastern plant producing great numbers of power installations for our fighting aircraft. Pratt and Whitney Aircraft
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Credit lineProduction. Pratt and Whitney airplane engines. A power section assembly is lowered to blower case assembly as another Pratt and Whitney airplane engine begins to take form at a large Eastern plant pr. 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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