Public domain
Production. Tungsten. Tungsten ores and concentrates are carefully analyzed at a recovery plant near Kingman, Arizona. The Boriana mine and plant at this point are producing large amounts of tungsten, for which there are many vital uses in the war effort. Boriana Mine, Arizona
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Credit lineProduction. Tungsten. Tungsten ores and concentrates are carefully analyzed at a recovery plant near Kingman, Arizona. The Boriana mine and plant at this point are producing large amounts of tungsten,. 1942-01-01. Henle, Fritz, United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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