Public domain
Production. Milling machines and machine castings. Pouring a large mold is a fiery sight. To the left, flames are shooting from an escape hole -- caused by gas generated by the contact of iron with the relatively cool sand, graphite, linseed oil and other ingredients involved in the mold structure.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Milling machines and machine castings. Pouring a large mold is a fiery sight. To the left, flames are shooting from an escape hole -- caused by gas generated by the contact of iron with th. 1942-01-01. United States. Office For Emergency Management, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.