Bolivia 1645-P T 8 reales

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Sedwick sale 27, lot 568

This specimen was lot 568 in Sedwick Treasure Auction 27 (Winter Park, FL, May 2020), where it sold for $595. The catalog description[1] noted, "Potosi, Bolivia, cob 8 reales, (1)645, assayer not visible. Full and bold date (rare thus), most of crown and nearly full shield and cross despite weak areas, somewhat crude near edge due to varying thickness, lightly toned AVF." This type was struck 1625-48 at Potosi. While silver cobs from Bolivia are very common, this early type is rare, as most were recalled and melted when it was discovered that the mint operators had been systematically debasing their issues, sometimes as low as .700 fine. Assayers R and TR are also known for this date.

Recorded mintage: unknown.

Specification: 27.07 grams, 0.931 fine silver, .810 troy oz ASW, this specimen 27.46 grams.

Catalog reference: Cayón-6379, KM-19a.


  • Cuhaj, George S., and Thomas Michael, Standard Catalog of World Coins, 1601-1700, 6th ed., Iola, WI: Krause Publications, 2014.
  • 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]Sedwick, Daniel Frank, Augi Garcia and Cori Sedwick Downing, Treasure Auction 27, Winter Park, FL: Daniel Frank Sedwick LLC, 2020.

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