Public domain
Anaconda smelter, Montana. Anaconda Copper Mining Company. Electromagnet removes metallic particles from ore
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAnaconda smelter, Montana. Anaconda Copper Mining Company. Electromagnet removes metallic particles from ore. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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