Mexico 1757-Mo M 2 reales

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1757/6 overdate - Acanthite collection
1757/6 overdate - Acanthite collection
another specimen, no overdate
from the Mountain Groan Collection

This 1757/6 2 reales is one of a series struck 1747-57 during the reign of Ferdinand VI (1746-59). It shows similar crowns atop the pillars on the date side (in this year there is also a variety with an imperial crown to the left of the globes). The first example is a very self-evident overdate, which Gilboy[1] lists as very rare. The regular issue for this year lists as uncommon, and the variety with the imperial left crown as scarce.

Mexican numismatists hotly debate which side of the coin constitutes the obverse. Gilboy[1] depicts the shield side as the obverse as that side bears the king's name. However, auction catalogs and dealer listings more frequently use the pillars and globes side as the obverse, as that side bears the date.

Recorded mintage: unknown.

Specification: 6.77 grams, 0.917 fine silver, 0.200 troy oz ASW.

Catalog reference: Cayón-10436 (overdate), Cayón-10437 (regular date), Gilboy M-2-30a, KM 86.1.

Source:

  • [1]Gilboy, Frank F., The Milled Columnarios of Central and South America: Spanish American Pillar Coinage, 1732 to 1772, Regina, Saskatchewan: Prairie Wind Publishing, 1999.
  • Yonaka, Brad, A Variety Guide to the Fractional Pillar Coinage of Mexico City, 1732-1771, Long Beach, CA: Agorocu Consulting, 2017.
  • Cayón, Adolfo, Clemente Cayón and Juan Cayón, Las Monedas Españolas, del Tremis al Euro: del 411 a Nuestros Dias, 2 volumes, Madrid: Cayón9-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.
  • Harper, David C., ed., North American Coins & Prices: A Guide to U. S., Canadian and Mexican Coins, 17th Ed., Iola, WI: Krause Publications, 2007.

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