Public domain
Transformer manufacture. Spools of copper wire used in transformer manufacture. Westinghouse, Sharon, Pennsylvania
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineTransformer manufacture. Spools of copper wire used in transformer manufacture. Westinghouse, Sharon, Pennsylvania. 1942-01-01. Palmer, Alfred T., United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.