Mexico 1828-G MR 1/2 real

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Ponterio sale 159, lot 8149
Mexico 1828Go medio real rev Ponterio 159-8149.jpg

This specimen was lot 8149 in Ponterio sale 159 (Baltimore, March 2011), where it sold for $138. The catalog description[1] noted, "MEXICO. Guanajuato. 1/2 Real, 1828-GMR. No "o" in mintmark. RARE variety. VERY FINE." It was struck at the Guanajuato mint in 1828, one of a type struck there 1826-68. Assayer MR is listed for 1828 only. This variety, with an incomplete mintmark, is not listed in the SCWC.

Recorded mintage: unknown.

Specification: 1.69 g, .903 fine silver, .049 troy oz ASW.

Catalog reference: KM-370.7.


  • Buttrey, T. V., and Clyde Hubbard, A Guide Book of Mexican Coins, 1822 to date, 6th ed., Iola, WI: Krause Publications, 1992.
  • 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]Ponterio, Richard, Ponterio sale 159: the March 2011 Baltimore Auction, featuring the Len Novotny collection, Irvine, CA: Stack's-Bowers & Ponterio, 2011.

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