Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer T, Grade 1. S-P21; KM-9. 12.92 grams. Full but partially flat shield and cross, minimal surface corrosion. With Fisher tag and certificate 85A-185428. Recovered from: Atocha, sunk in 1622 west of Key West, Florida


Estimate: 1250 - 2000 USD