Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer not visible, Grade 3. KM-8. 3.76 grams. Thin from heavy corrosion, clear shield, crude cross, darkly toned. With Fisher tag and certificate #189917. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $300-450