Mexico 1767-Mo M real
The 1767MoM is one of a series of reals struck 1760-1771, during the reign of Charles III. Gilboy lists this date as somewhat scarce. Though he records no varieties for the date, there are several minor varieties that occur during the years 1766-1769. They involve an incomplete or 'crescent' shaped o above the M of the mintmark (which appears in the example shown), and an incomplete cross used above the 1 of the denomination.
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.
Specification: 3.38 grams, 0.917 fine silver, 0.099 troy oz ASW.
Catalog reference: Gilboy M-1-43, KM 77.
- Gilboy, Frank F., The Milled Columnarios of Central and South America: Spanish American Pillar Coinage, 1732 to 1772, Regina, Saskatchewan: Prairie Wind Publishing, 1999.
- 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.