Bolivia 1740-P M 8 reales

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photo courtesy Cayon Subastas

The Spanish colony of Upper Peru produced hammered cob coinage at the Potosi mint from 1573 to 1773, with a major debasement scandal and subsequent reform occurring in 1649-1652. The period 1767-1770 saw simultaneous issue of milled columnarios. The royal or presentation issues are very rare and highly sought after, while the regular strikes vary in price according to the visibility of the date, mint, and assayer initials.

The specimen shown was lot 640 at Cayon Subastas auction held February 4, 2012, where it sold for 230 euros (about $357 including buyer’s fees). The catalog description[1] noted "Potosí. 8 reales. 1740. M. Dos fechas visibles. Algo de verdín. MBC+. Buen rev. Último año del ensayador Manrique de Jiménez. (Potosi 8 reales, 1740-M. Two dates visible. Some verdigris. Very fine+. Good reverse. Last year of the assayer Manrique de Jimenez.)"

Recorded mintage: unknown.

Specification: 27.07 g, 0.917 silver, 0.798 oz ASW. This specimen 27.5 g.

Catalog reference: KM-31a; Cayón-9422, Plt352.

Source:

  • 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.
  • [1]Cayon Subastas, Auction February 2012: Highly Important Collection of Spanish and Latin American 8 Reales and other Coins from the Spanish Empire, Madrid: Cayon Subastas, 2012.
  • Michael, Thomas, Standard Catalog of World Coins, 1701-1800, 7th ed., Iola, WI: Krause Publications, 2016.

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