Lot of 3. Located in Huachuca Mountains. Mostly copper and silver. 1) Two certificates for the Hartford Mining Corporation. One Common, one Preferred. Both issued in 1904, not cancelled. Black border and eagle vignette. Folds. Not listed in Copper Handbook. 2) Hartford-Arizona Copper Mining Company. No. 252, issued for 1,000 shares in 1910. Not cancelled. Multiple mining vignettes. Deep folds. State: Arizona City: Cochise County Date: 1904-1910