Public domain
When sheet metal parts are cut on the router, they go to the hydropress department where they are placed on masonite dies and pressed to the proper shape under 3000 tons pressure
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineWhen sheet metal parts are cut on the router, they go to the hydropress department where they are placed on masonite dies and pressed to the proper shape under 3000 tons pressure. 1942-01-01. Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.