Calumet-Hecla Copper Smelter Ingot Mold Stereoview-Lake Linden Michigan

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Calumet-Hecla Copper Smelter Ingot Mold Stereoview-Lake Linden Michigan:
$17.99

Offered here is a Keystone View Company stereoview that reads on front \"12044 - Pouring Molten Copper Into Ingot Molds, Calumet-Hecla Smelters, Lake Linden, Mich.\" Reverse goes into a great amount of detail regarding how the copper in this famous Michigan mining district is mined and smelted. Thanks for looking!