Bolivia (1586-89)-P A 4 reales
This specimen was lot 586 in Sedwick Treasure Auction 28 (Winter Park, FL, November 2020), where it sold for $240. The catalog description noted, "Potosi, Bolivia, cob 4 reales, Philip II, assayer A. Good full shield and cross, bold full P-A and denomination o-IIII, AVF with some toning on fields, high points lightly abrade." The mountains around Potosi contained enormous amounts of high grade silver ore, a situation the Spanish were not slow to exploit. A mint was set up in the 1570's to process the silver mined there. The early products of the reign of Philip II are fairly good quality but rot set in during the following reign, including fraudulent debasement. The Potosi mint was the first mint in the western hemisphere to date its products. Dating began in 1617. Assayer "A" is somewhat better but not rare.
Recorded mintage: unknown.
Specification: 13.54 g, 0.931 fine silver, this specimen 12.99 grams.
Catalog reference: S-P11; KM-4.2; Cal-527, Cayón-3759.
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- 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.
- Krause, Chester L., and Colin R. Bruce II, Standard Catalog of World Coins: Spain, Portugal and the New World, Iola, WI: Krause Publications, 2002.
- Menzel, Sewall, Cobs, Pieces of Eight and Treasure Coins, New York: The American Numismatic Society, 2004.
- Sedwick, Daniel Frank, Augi Garcia and Cori Sedwick Downing, Treasure Auction 28, featuring the Dr. Peter Jones and John O'Brien collections, Winter Park, FL: Daniel Frank Sedwick LLC, 2020.