Public domain
Hanna furnaces of the Great Lakes Steel Corporation, Detroit, Mich. Cleaning out loose coke after removing a door preparatory to putting door back
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineHanna furnaces of the Great Lakes Steel Corporation, Detroit, Mich. Cleaning out loose coke after removing a door preparatory to putting door back. 1939. Siegel, Arthur S.. FSA/OWI Color Photographs, Library of Congress. Public domain.
