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Comstock Merger Mines Assay Comparisons, 1922 [173203]

Currency:USD Category:Collectibles / Mining Start Price:150.00 USD Estimated At:300.00 - 600.00 USD
Comstock Merger Mines Assay Comparisons, 1922    [173203]

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Original pen and ink on linen 17 x 30" dated Nov 1922 for the Comstock Merger Mines. This important document shows the comparison of multiple assays taken over the same sections through five different working cross cuts. this type of evaluation is common in mines where the gold an silver values may not be homogeneous, thus the reproduction of samples may show differing values. Here, four of the five cross cuts show 55-95 sections of ore where they have averaged four different samples over the same five foot section. today the values shown could constitute a potential successful open pit mine. Virginia City Nevada Franklin Collection