Public domain
Transportation. Engines. "MacArthur" engine in service on the Baltimore and Ohio Railroad. Engine is shown at Halethorpe, Maryland, about eight miles from Baltimore, pulling a freight train
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineTransportation. Engines. "MacArthur" engine in service on the Baltimore and Ohio Railroad. Engine is shown at Halethorpe, Maryland, about eight miles from Baltimore, pulling a freight train. 1942-01-01. Hollem, Howard R., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.