MEXICO. 8 Reales, 1773-Mo FM. Mexico City Mint. Charles III. NGC AU-55. KM-106.1; Cal-1106. Variety with inverted mintmark. Elusive at this state of preservation, this wonderful example yields a richness of strike and much in the way of wholesome details throughout. The surfaces glow with a soft and beautiful sheen, and rich golden color at the peripheries. A piece that is deserved of much collector attention and focus.