Public domain
Production. Steam power plant equipment. Filling tube holes on a high-pressure boiler drum. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Enginee
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Steam power plant equipment. Filling tube holes on a high-pressure boiler drum. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee. 1942-01-01. Palmer, Alfred T., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.