American Smelting and Refining Co., Montana
American Smelting and Refining Co., Montana
American Smelting and Refining Co., Montana
American Smelting and Refining Co., Montana
American Smelting and Refining Co. workers
Electrolytic zinc room, Great Falls
Electrolytic zinc room, Great Falls
Black Eagle Dam, Great Falls
Black Eagle Dam, Great Falls
Anaconda Copper Mining Co. smelter and wire mill
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