Watch List notes:

Potosi, Bolivia, cob 2 reales, 1621T, Grade 2. S-P21; KM-8; CT-359. 6.52 grams. Bold 621 of date, full shield and cross (the latter off-center), minimal corrosion, brightly silvery. Pedigreed to the Classics collection, with Fisher tag and photo-certificate #94A-270609. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $700-1000