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Calumet & Hecla Smelter |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Woody Plants, Trees, Smelting |
Calumet & Hecla Smelting Works, Hubbell, MI. No. 22 Furnace Dec. 1, 1930. Poling while casting. [Image of the furnace in operation.] Scanned: December 12, 2006 |