Public domain
Production. Airplane manufacture, general. A employee in the drill press section of North American's huge machine shop at Inglewood, California, runs mounting holes in a large dural casting. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tok
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Airplane manufacture, general. A employee in the drill press section of North American's huge machine shop at Inglewood, California, runs mounting holes in a large dural casting. This plan. 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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