Mexico 1670-Mo G 1/2 real
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The first specimen was lot 426 in Sedwick Treasure Auction 26 (Winter Park, FL, November 2019), where it sold for $178.50. The catalog description[1] noted, "Mexico City, Mexico, cob 1/2 real, 1670(G), very rare. Full 670 of date, nearly full cross on a broad thin flan, About Fine." The second specimen lacks a date or an assayer. The silver cobs were debased from 0.931 fine to 0.917 fine in 1728. They are not rare but very scarce with legible dates.
Recorded mintage: unknown.
Specification: 1.69 g, 0.931 fine silver, the first specimen 1.43 g.
Catalog reference: S-M20; KM-23 (unlisted date); CT-809, Cayón-unlisted.
- 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, vol. 1, 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 Felipe VI, 1474 a 2020, Barcelona: Aureo & Calicó, 2019.
- 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 26, Winter Park, FL: Daniel Frank Sedwick LLC, 2019.
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