Public domain
Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Open hearth steel is also made at this plant. Workers here shown are completing the charge to an open hearth furnace which has a capacity of about 100 tons per heat. Only small quantities of materials are charge
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Credit lineSteel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Open hearth steel is also made at this plant. Workers here shown are completing the charge to an open hearth fu. 1940-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.