Public domain
Tempered to take it. This elaborate machine is an important war worker. It heat treats and tempers gun parts at an eastern armory
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineTempered to take it. This elaborate machine is an important war worker. It heat treats and tempers gun parts at an eastern armory. 1940-01-01. United States. Office For Emergency Management, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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