Watch List notes:

MEXICO, Mexico City, cob 8 reales, Philip II, assayer O below mintmark oM to left, ex-Atocha Research Collection, Plate Coin 111. S-M11; KM-43; Cal-661. 26.65 grams. A practically corrosion-free beauty with very well-detailed full shield and cross-lions-castles, bold full oMO to left and denomination 8 to right, full king's ordinal II between two dotted annulets in legend, desirable as the first obtainable dollar-sized coin of Mexico (and, by extension, of North America), very rare from this wreck and clearly one of the Atocha's best silver coins. With original Fisher tag and photo-certificate 85A-237034. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $3000 - $6000