Agency of the Bank of California. July 5, 1870. Virginia, Nev. John Mackay.

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Agency of the Bank of California. July 5, 1870. Virginia, Nev. John Mackay. RN-B16a. Mariposa Mill Company. Brown/blue/white. RN-B16a, Upper right corner clipped. Slight soiling top center. Good-Fine. Signed by John W. Mackay. His parents brought him in 1840 to New York City, where he worked in a shipyard. In 1851 he went to California and worked in placer gold-mines in Sierra County. In 1859 he went to Virginia City, Nevada, and there, after losing all he had made in California, he formed a business partnership with fellow Irishmen James Graham Fair, James C. Flood, and William S. O'Brien. The four dealt in mining stocks and operated silver mines on the Comstock Lode, and in 1873 discovered the great ore body known as the "big bonanza" in the Consolidated Virginia and California mine, an orebody more than 1,200 feet deep, which yielded in March of that year as much as $3,876 per ton. Nice combination of stamps and signature. Items may have minor splits, folds, spindle holes, or toning Any serious faults i will describe. Please check photos. All items enclosed in Mylar fold over sleeve. Items sent in 9 1/2 x 6/ 1/2 cardboard backed envelope.