1932 Gov\'t Booklet on Milling Methods at the Hecla Mining Co Gem Idaho
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1932 Gov\'t Booklet on Milling Methods at the Hecla Mining Co Gem Idaho:
$31.99
Up for sale is a April 1932 Information Circular issued by the Department of Commerce on the Milling methods and costs at the Lead Concentrator of the Hecla Mining Co in Gem Idaho. It has 17 pages of information. It measures 8 x 10.5 inches and is in nice condition