Watch List notes:

Potosi, Bolivia, cob 8 reales, 1619T, Grade 2. S-P21; KM-10; CT-133. 26.42 grams. Choice full shield (doubled at bottom), off-center cross with full date, nicely toned, no corrosion. With Fisher certificate #180533. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $400