Public domain
Shipbuilding. "Liberty" ships. Knee brackets ready to be welded between the ship's deck beams and frames ( or ribs) at the start of the production line. All parts are prefabricated in this huge Eastern plant which formerly turned out freight cars. The completed sections are then carried six miles to
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineShipbuilding. "Liberty" ships. Knee brackets ready to be welded between the ship's deck beams and frames ( or ribs) at the start of the production line. All parts are prefabricated in this huge Easter. 1941-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.