Mexico (1538-40)-Mo P 1/2 real

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Ponterio sale 150, lot 9083

This coin was lot 9083 in Ponterio sale 150 (Los Angeles, August 2009), where it sold for $3,910. The catalog description[1] noted, "MEXICO. Carlos and Johanna, Early Series. 1/2 Real Assayer P (oMo-oPo), ND (1538-1540 or 1541). A quite SCARCE coin that is EXTREMELY RARE in this grade. This coin is wonderful looking for a Half Real of the early series which are normally found in much lower grade. A few trivial scratches on the reverse that are hard to notice and easily overlooked due to the overall quality of the coin. Well struck, full legends and nicely toned. EXTREMELY FINE-ALMOST UNCIRCULATED." The "Carlos and Johanna" coinage of 1536-55 is complicated and difficult to disentangle as records are sparse and the coins are not dated. Ponterio[1] gives details of the latest research. The early series of 1536-41 is rare in all denominations.

Recorded mintage: Unknown.

Specification: 1.69 g, .931 fine silver, .050 troy oz ASW.

Catalog reference: KM-6; Nesmith-23; Cal-type-125#187a, Cayón no. 3022.


  • Krause, Chester L., and Colin R. Bruce II, Standard Catalog of World Coins: Spain, Portugal and the New World, Iola, WI: Krause Publications, 2002.
  • Cayón, Adolfo, Clemente Cayón and Juan Cayón, Las Monedas Españolas, del Tremis al Euro: del 411 a Nuestros Dias, 2 volumes, Madrid: Cayón-Jano S.L., 2005.
  • Calicó, Xavier, Numismática Española: Catálogo General con Precios de Todas las Monedas Españolas Acuñadas desde Los Reyes Católicos Hasta Juan Carlos I, 1474 a 2001, Barcelona: Aureo & Calicó, 2008.
  • Menzel, Sewall, Cobs, Pieces of Eight and Treasure Coins, New York: The American Numismatic Society, 2004.
  • [1]Ponterio, Richard, and Kent Ponterio, Ponterio sale 150: The 2009 Los Angeles ANA Auction, Irvine, CA: Bowers and Merena, 2009.

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