Public domain
Iron ore piles and blast furnaces, Carnegie-Illinois Steel Corporation mill in Etna, Pennsylvania
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Subjects
Credit lineIron ore piles and blast furnaces, Carnegie-Illinois Steel Corporation mill in Etna, Pennsylvania. 1939-01-01. Palmer, Alfred T.. FSA/OWI Color Photographs, Library of Congress. Public domain.