Public domain
Anaconda smelter, Montana. Anaconda Copper Mining Company. Workmen plug the hold in the refractory material through which the molten stream of copper had been flowing to the ladle from the reverberatory furnace
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Credit lineAnaconda smelter, Montana. Anaconda Copper Mining Company. Workmen plug the hold in the refractory material through which the molten stream of copper had been flowing to the ladle from the reverberato. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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