Public domain
Production. Pratt and Whitney airplane engines. Power section crank cases for Pratt and Whitney airplane engines undergo a careful inspection in a large Eastern plant before assembly into engines that will carry our fighting airmen to victory. Pratt and Whitney Aircraft
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Credit lineProduction. Pratt and Whitney airplane engines. Power section crank cases for Pratt and Whitney airplane engines undergo a careful inspection in a large Eastern plant before assembly into engines that. 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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