Public domain
Production. Submarine chasers. Bad news for U-boats. A powerful marine diesel engine is lowered to its bed in the hull of a 173-foot steel subchaser at an Eastern boatyard. Marine Construction Company, Stamford, Connecticut
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Submarine chasers. Bad news for U-boats. A powerful marine diesel engine is lowered to its bed in the hull of a 173-foot steel subchaser at an Eastern boatyard. Marine Construction Company. 1942-01-01. Liberman, Howard, United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.