Public domain
Production. B-17F heavy bomber. Machine screws to be used in building new B-17F (Flying Fortress) bombers in the Boeing plant in Seattle are attached to hangers which suspend them in anodizing tank. In the tanks they will receive a protective plating to prevent corrosion. The Flying Fortress, a four
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Credit lineProduction. B-17F heavy bomber. Machine screws to be used in building new B-17F (Flying Fortress) bombers in the Boeing plant in Seattle are attached to hangers which suspend them in anodizing tank. I. 1942-01-01. United States. Office Of War Information, Feininger, Andreas. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.