Public domain
Coke being pushed into a quenching car, Hanna furnaces of the Great Lakes Steel Corporation, Detroit, Mich.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineCoke being pushed into a quenching car, Hanna furnaces of the Great Lakes Steel Corporation, Detroit, Mich.. 1939. Siegel, Arthur S.. FSA/OWI Color Photographs, Library of Congress. Public domain.