Public domain
Production. Naval gun mounts. A mount ring for a big naval gun is checked as skilled workers in a large Midwest machine shop complete layouts work that guides later machining operations. Westinghouse, Louisville, Kentucky
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Naval gun mounts. A mount ring for a big naval gun is checked as skilled workers in a large Midwest machine shop complete layouts work that guides later machining operations. Westinghouse,. 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.