Public domain
Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Power for the wheels of defense industry. The stacks of the power house which generates all the steam required in this plant. The heavy wires in the foreground carry current to the electric furnaces used to conv
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineSteel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Power for the wheels of defense industry. The stacks of the power house which generates all the steam required . 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.