Mexico 1731-Mo F 4 reales
This specimen was lot 42512 in Stack's Bowers Winter sale (Baltimore, November 2015), where it sold for $129.25. The catalog description noted, "MEXICO. 4 Reales, 1731-F. Philip V (1700-46). PCGS Genuine--Environmental Damage, VF Details Secure Holder. Struck on a nearly square flan, with the important details such as date, mint mark and assayer all clear and readable without magnification. Likely sea salvaged but without much porosity." This specimen is a silver cob four reales struck at Mexico City the year before the conversion to milled coinage. Specimens with clear dates are unusual. This type is separated from KM 40, struck 1701-28, by its lower fineness; the earlier issues were .931 fine silver.
Recorded mintage: unknown.
Specification: 13.54 grams, .917 fine silver, .399 troy oz ASW.
Catalog reference: Cal-type-175#1029; KM-40a, Cayón-9051.
- Michael, Thomas, Standard Catalog of World Coins, 1701-1800, 7th ed., Iola, WI: Krause Publications, 2016.
- 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.
- Ponterio, Richard, and Todd McKenna, The November 2015 Baltimore Auction, World Coins and Paper Money, featuring the Ray Czabor Collection and selections from the Strong Museum, Santa Ana, CA: Stack's Bowers LLC, 2015.