Public domain
Aluminum casting. A new development in the production of war materials involves use of magnesium. Here a young worker in a large Midwest foundry takes temperature readings of molten magnesium alloy through the protective crust. At the same time he is sprinkling flux to prevent burning at the hole in
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAluminum casting. A new development in the production of war materials involves use of magnesium. Here a young worker in a large Midwest foundry takes temperature readings of molten magnesium alloy th. 1942-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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