Public domain
Production. Copper. This large motor drives one of the gyratory crushers in the crushing plant of the Utah Copper Company. Its mills at Magna and Arthur in Utah are treating vast quantities of the copper so vital for war purposes
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Credit lineProduction. Copper. This large motor drives one of the gyratory crushers in the crushing plant of the Utah Copper Company. Its mills at Magna and Arthur in Utah are treating vast quantities of the cop. 1940-01-01. United States. Office Of War Information, Feininger, Andreas. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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