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Conversion. Automobiles to 40 mm. anti-aircraft guns. Preliminary inspection of "flame arresters" in a former automobile plant. When finished, these "flame arresters" are attached to the nozzle end of a 40 mm. anti-aircraft gun to protect the firing crew. Chrysler Corporation, Highland Park, Detroit. Sourced from the Library of Congress.

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Conversion. Automobiles to 40 mm. anti-aircraft guns. Preliminary inspection of "flame arresters" in a former automobile plant. When finished, these "flame arresters" are attached to the nozzle end of a 40 mm. anti-aircraft gun to protect the firing crew. Chrysler Corporation, Highland Park, Detroit. Sourced from the Library of Congress.

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