Public domain
Production. Airplane engines. Airplane engines assembled for testing in a Midwest plant. After the tests have been run, the engines will be torn down and all parts minutely inspected. After reassembly and another series of tests, the engines will be shipped to airplane factories. Continental Motors,
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Credit lineProduction. Airplane engines. Airplane engines assembled for testing in a Midwest plant. After the tests have been run, the engines will be torn down and all parts minutely inspected. After reassembly. 1942-01-01. Palmer, Alfred T., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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