Mexico 1728-Mo D 8 reales
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This specimen was lot 503 in Sedwick Treasure Auction 28 (Winter Park, FL, November 2020), where it sold for $480. The catalog description[1] noted, "Mexico City, Mexico, cob 8 reales, (1)728(D), rare. Square flan with bold full 28 of date (only the third example we have offered), full cross, crudely struck VG with very dark toning and oxidation all over as from burial." The silver cobs were debased from 0.931 fine to 0.917 fine in 1729. They are not rare but very scarce with legible dates.
Reported Mintage: unknown.
Specification: 27.07 g, 0.931 fine silver, 0.810 troy oz ASW, this specimen 27.23 grams.
Catalog reference: Cayón-9308, S-M23a; KM-47; Cal-1414.
- 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.
- Michael, Thomas, Standard Catalog of World Coins, 1701-1800, 7th ed., Iola, WI: Krause Publications, 2016.
- [1]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.
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