Public domain
Kern County California. Mill of the Tungsten Chief Mine. Roasting concentrated tungsten ore to remove moisture
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineKern County California. Mill of the Tungsten Chief Mine. Roasting concentrated tungsten ore to remove moisture. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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