Public domain
Tank armor production. Carnegie-Illinois Steel Corporation. Farrell, Pennsylvania. Large mill plates for the making of tank armor plate are handled with heavy crane hooks during the heat treating, rough flattening and abrasive
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineTank armor production. Carnegie-Illinois Steel Corporation. Farrell, Pennsylvania. Large mill plates for the making of tank armor plate are handled with heavy crane hooks during the heat treating, rou. 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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