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Anaconda smelter, Montana. Anaconda Copper Mining Compnay. Batteries of converters. Degree of processing in the converters is determined by the color of the smoke
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAnaconda smelter, Montana. Anaconda Copper Mining Compnay. Batteries of converters. Degree of processing in the converters is determined by the color of the smoke. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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