Mines & mineral resources. Western states Specimens of mines & co's; list, National exposition Denver. R. M. News. July 15, 1882 p.7 c.l Prominent mines will be represented by specimens & spokesmen, Natl. expos., Denver. R. M. News. July 17, 1882 p.4 c.2 Exhibits, states & mines; list, Natl. expos., Denver. R. M. News. July 18, 1882 p.8 c.3 Description, exhibits, districts; list, Natl. expos., Denver. R. M. News. July 28, 1882 p.2 c.2 Shipments, minerals; list, Colo. smelting works, Denver. R. M. News.Sup.July 30,1882 p.4 c.7 0 -
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