Mexico 1842-Pi PS 1/2 real

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Ponterio sale 159, lot 8161
photo courtesy Ponterio & Associates
Ponterio sale 159, lot 8162
photo courtesy Ponterio & Associates

The type was struck at San Luis Potosi 1831 and 1842-63, with assayer PS listed for 1842-43. These specimens were lot 8161 and 8162 in Ponterio sale 159 (Baltimore, March 2011), where they sold for $575 and $1,092.50. The catalog description[1] noted, "MEXICO. Potosi. 1/2 Real, 1842/41-PiPS/JS. Toned. NGC MS-62" for the first and "MEXICO. Potosi. 1/2 Real, 1842-PiPS. NGC MS-65" for the second. This date is listed as scarce.

Recorded mintage: unknown.

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

Catalog reference: KM 370.10.


  • Cuhaj, George S., and Thomas Michael, Standard Catalog of World Coins, 1801-1900, 7th ed., Iola, WI: Krause Publications, 2012.
  • Buttrey, T. V., and Clyde Hubbard, A Guide Book of Mexican Coins, 1822 to date, 6th ed., Iola, WI: Krause Publications, 1992.
  • [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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