Mexico 1840-Go PJ 8 reales

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from the Mountain Groan Collection

Shown is a fake 1840 "G-J" next to a genuine 1837-Go PJ 8 reales. This particular counterfeit is common and is documented in Buttrey and Hubbard[1] and Riddell[2]. Besides the incorrect mintmark and mintmaster, the greenish color (from the excessive copper content) gives it away. Even so, there are extensive signs of circulation.

Catalog reference: KM 377.8.


  • Harper, David C., ed., North American Coins & Prices: A Guide to U. S., Canadian and Mexican Coins, 17th Ed., Iola, WI: Krause Publications, 2007.
  • [1]Buttrey, T. V., and Clyde Hubbard, A Guide Book of Mexican Coins, 1822 to date, 6th ed., Iola, WI: Krause Publications, 1992.
  • [2]Riddell, J. L., Monograph of the Silver Dollar, Mexico City, Sociedad Numismatica de Mexico, 1969 (reprint of 1845 original).

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