Watch List notes:

MEXICO: Carlos III, 1759-1788, AV 8 escudos, 1768/7-Mo, KM-155, Fr-29, Calicó-83 var, Cal. Onza-754 var, assayer MF, so-called "rat face" variety with dot after date, well struck, exceedingly rare, NGC graded EF45, RRR. This overdate does not appear to be published. A look at the major search engines shows no sales recorded. The NGC census shows only two pieces certified, both EF-45, making this tied for the finest certified at NGC. There are no examples certified by PCGS.

Estimate: 6,500-8,500 USD