Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer not visible, Grade 1. KM-9. 11.51 grams. Well-detailed full shield, full cross with minor doubling, light surface corrosion, toned in crevices. With Fisher tag and certificate #136058. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $600-900