1936 Metallurgical Test Reports Denver Equipment Company-Gold Center Mine Colo.

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1936 Metallurgical Test Reports Denver Equipment Company-Gold Center Mine Colo.:
$9.99

Offered here are six separate Metallurgical Test Reports performed by the Denver Equipment Company for gold, silver and other metals from the Gold Center Mining and Milling Company. All dated 1936. Measure 8.50 x 11.0. The Gold Center Mines were located near Idaho Springs, Colorado. Thanks for looking!