Mexico 1742-Mo M 1/2 real
This date is one of a series struck 1742-47 for Philip V. It is distinguished from earlier issues (KM 65, 1732-41) of pillar half reales by having the crowned shield extend to the rim. 1742 is the first year of the new obverse design. Gilboy lists the normal variety for this date as common. This particular specimen omits the pellet to the right of the date, which is an unlisted variety. The only listed occurrence of this alteration in design is for half reales of 1746.
Mexican numismatists hotly debate which side of the coin constitutes the obverse. Gilboy depicts the shield side as the obverse as that side bears the king's name. However, auction catalogs and dealer listings more frequently use the pillars and globes side as the obverse, as that side bears the date.
Recorded mintage: unknown.
Specification: 1.69 grams, .917 fine silver, .049 troy oz ASW.
Catalog reference: Cayón-8298, Gilboy M-05-15 (unlisted variety), KM 66.
- Gilboy, Frank F., The Milled Columnarios of Central and South America: Spanish American Pillar Coinage, 1732 to 1772, Regina, Saskatchewan: Prairie Wind Publishing, 1999.
- 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.
- Yonaka, Brad, A Variety Guide to the Fractional Pillar Coinage of Mexico City, 1732-1771, Long Beach, CA: Agorocu Consulting, 2017.
- Harper, David C., ed., North American Coins & Prices: A Guide to U. S., Canadian and Mexican Coins, 17th Ed., Iola, WI: Krause Publications, 2007.
- Harris, Robert P., Pillars & Portraits, San José, CA: Bonanza Press, 1968.