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Kingman (vicinity), Arizona. Tungsten ore being analyzed in a laboratory at a recovery plant near the Boriana mine
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Kingman (vicinity), Arizona. A workman unloading mine cars that have been hauling tungsten ore from the Boriana mine workings to a concentrating plant in the same area
Kingman (vicinity), Arizona. A train of small cars carrying tungsten ore from the Boriana mines to a concentrating plant in the same area. The mine is about forty miles from Kingman
Kingman (vicinity), Arizona. A train of small cars carrying tungsten ore from the Boriana mines to a concentrating plant in the same area. The mine is about forty miles from Kingman