Public domain
Kern County, California. Mill of the Tungsten Chief Mine. Ball mills which grind the tungsten ore into particles suitable for the tabling concentration
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. Ball mills which grind the tungsten ore into particles suitable for the tabling concentration. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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