Public domain
Kern County, California. Mill of the Tungsten Chief Mine. When ore concentrate collects at the edge of the vibrator table, the operator adds water to wash off the thick accumulated concentrate
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. When ore concentrate collects at the edge of the vibrator table, the operator adds water to wash off the thick accumulated concentrate. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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