Public domain
Worker charging heat treating oven for low temperature precipitation treatment of aluminum pistons to be used in U.S. Army jeeps. Aluminum Industries
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineWorker charging heat treating oven for low temperature precipitation treatment of aluminum pistons to be used in U.S. Army jeeps. Aluminum Industries. 1942-01-01. Palmer, Alfred T., United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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