Mexico 1987-Mo P onza
This specimen was lot 72283 in Stack's Bowers Collector's Choice sale (Costa Mesa, CA, November 2023), where it sold for $4,080. The catalog description[1] noted, "MEXICO. Platinum Onza, 1987-Mo P. Mexican (Potosi) Mint. NGC PROOF-69 Ultra Cameo. Commemorating the Mexican Mint, which had moved to Potosi from Mexico City earlier in the decade, this specimen presents intense mirrored brilliance in the fields and alluring frosting imparted unto the devices. Compare to a similar example, a PCGS PROOF-68 Deep Cameo, that realized a total of $5,760 in our November 2022 CCO (Lot # 72904)." This piece lies on the border between coin and medal. It has no face value yet was struck by the Mexico mint (no longer in Mexico City). It is similar enough to other gold and silver onzas issued on other occasions for collectors who might spurn ordinary medals to include it. The platinum onza never evolved into a regular series.
Recorded mintage: 270.
Specification: 31.10 g, 0.999 fine platinum, 32 mm diameter, reeded edge.
Catalog reference: KMX-MB22.
- Amaya Guerra, Carlos Abel, Epitome Ilustrado de la Moneda Mexican Moderna, 1905 a 2015, Monterrey, Mexico, 2015.
- Bailey, Don and Lois, Whitman Encyclopedia of Mexican Money, Volume 1, An Illustrated History of Mexican Coins and Currency, Atlanta: Whitman Publishing, 2014.
- Buttrey, T. V., and Clyde Hubbard, A Guide Book of Mexican Coins, 1822 to date, 6th ed., Iola, WI: Krause Publications, 1992.
- Cuhaj, George S., and Thomas Michael, Unusual World Coins, 6th ed., Iola, WI: Krause Publications, 2011.
- [1]Orsini, Matt, Kyle Ponterio and Jeremy Bostwick, November 2023 World Collectors Choice Online Auction - Ancient & World Coins, Costa Mesa, CA: Stack's Bowers Galleries, Inc., 2023.
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