Public domain
Subcontracting aircraft parts. Heat treatment is essential to develop the toughness necessary in the metal for U.S. warcraft. This worker is quenching a metal sheet which has just come from the furnace. Goodyear, Akron, Ohio
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineSubcontracting aircraft parts. Heat treatment is essential to develop the toughness necessary in the metal for U.S. warcraft. This worker is quenching a metal sheet which has just come from the furnac. 1941-01-01. 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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