Mexico 1850-Do RM 1/2 real

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Ponterio sale 159, lot 8125
photo courtesy Ponterio & Associates

The type was struck at Durango 1832-69, with assayer RM listed for 1832-48. This specimen was lot 8125 in Ponterio sale 159 (Baltimore, March 2011), where it sold for $575. The catalog description[1] noted, "MEXICO. Durango. 1/2 Real, 1850-DoRM. Extremely RARE. FINE-VERY FINE." The SCWC notes JMR (José Maria Ramirez) was supposed to be assayer for 1849-52 so this die with assayer RM may have used in error, accounting for its rarity. This specimen appears to be struck from badly eroded dies, perhaps salvaged from a prior year and redated, a common practice.

Recorded mintage: unknown.

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

Catalog reference: KM 370.3.


  • 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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