Public domain
Production. Pipe fittings. The V-belt drive of the world's largest machine of its kind, a nine inch upsetter. The machine is used in a Midwest plant to forge 75 mm shells for the Army. Tube Turn Incorporated
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Pipe fittings. The V-belt drive of the world's largest machine of its kind, a nine inch upsetter. The machine is used in a Midwest plant to forge 75 mm shells for the Army. Tube Turn Incor. 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.