Public domain
Production. Pratt and Whitney airplane engines. A power section for a Pratt and Whitney airplane engine is installed at a large Eastern plant. This, like all other manufacturing or assembly operations, is handled with the greatest care to assure faultless operation of a fine engine for a fine plane.
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Credit lineProduction. Pratt and Whitney airplane engines. A power section for a Pratt and Whitney airplane engine is installed at a large Eastern plant. This, like all other manufacturing or assembly operations. 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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