Public domain
A diesel engine in the engine room of the towboat Ernest T. Weir going down the Ohio River to Cincinnati
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineA diesel engine in the engine room of the towboat Ernest T. Weir going down the Ohio River to Cincinnati. 1943-01-01. Siegel, Arthur S.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.