Bolivia 1751-P E 4 reales
This specimen was lot 71235 in Stack's Bowers Collectors Choice sale (Costa Mesa, CA, November 2022), where it sold for $720. The catalog description[1] noted, "BOLIVIA. Cob 4 Reales, 1751-P. Potosi Mint; Assayer Esteban Gutierrez Escalante (E). Ferdinand VI. PCGS EF-40. A nicely struck and centered cob from a less common assayer. With mintmark, two dates, and three assayer marks visible, this is an unusually complete and attractive piece. From the Pat Johnson Collection. Ex: Paul Karon Collection (Ponterio 03/90) Lot # 442." This type was struck for Ferdinand VI through his entire reign. Assayer "q" stamped coins 1744-59. Assayer "E" is listed for 1750-51 along with assayer "q". The silver cobs were debased from 0.931 fine to 0.917 fine in 1728.
Recorded mintage: unknown.
Specification: 13.54 g, 0.917 fine silver, this specimen 13.10 g.
Catalog reference: Cayón-10496, KM-39; Cal-404.
- 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.
- Michael, Thomas, Standard Catalog of World Coins, 1701-1800, 7th ed., Iola, WI: Krause Publications, 2016.
- [1]Orsini, Matt, Kyle Ponterio and Jeremy Bostwick, The November 2022 Collectors Choice Ancient & World Coins Auction, Featuring the Pat Johnson Collection, Costa Mesa, CA: Stack's Bowers LLC, 2022.
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