Public domain
Conversion. Automobiles to 40 mm. anti-aircraft guns. To ensure maximum efficiency, every 40 mm. anti-aircraft gun barrel made in this former automobile plant is checked and double checked. Here an inspector is examining the size of the bore in an army barrel. Chrysler Corporation, Highland Park, De
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Credit lineConversion. Automobiles to 40 mm. anti-aircraft guns. To ensure maximum efficiency, every 40 mm. anti-aircraft gun barrel made in this former automobile plant is checked and double checked. Here an in. 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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