Public domain
Production. Airplane engines. Before this airplane engine arrived at the point of packing for shipment from a Midwest plant, it had to prove itself a good engine. It has been thoroughly tested after original assembly, torn down for minute inspection of all parts, reassembled and put through final te
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Airplane engines. Before this airplane engine arrived at the point of packing for shipment from a Midwest plant, it had to prove itself a good engine. It has been thoroughly tested after o. 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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