Mexico City, Mexico, cob 8 reales, Philip II, assayer O below mintmark oM to left, NGC AU 53. S-M11; KM-43; Cal-661. 27.54 grams. Full legends and crown and inner details (round-top 8 for denomination) on a typically broad flan with just a trifle of doubling, very lightly toned, dotted-circle stops visible on reverse legend, desirable grade for a popular issue that can be considered the first general-production "dollar" of Mexico.
Estimate: 2500 - 3750 USD