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Production. Airplane propellers. Inspection of propeller blade finishes at Hartford, Connecticut, plant. The inspection process includes close examination of the polish. The inspectors are John Lutz, F.S. Drega and Joseph Kozlowski. Sourced from the Library of Congress.

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Production. Airplane propellers. Inspection of propeller blade finishes at Hartford, Connecticut, plant. The inspection process includes close examination of the polish. The inspectors are John Lutz, F.S. Drega and Joseph Kozlowski. Sourced from the Library of Congress.

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