Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer T, Grade 1. 11.09 grams. Crude flan due to corrosion loss (both on edge and on surfaces), hence more like Grade-2 quality or less, full but partially weak cross and shield, toned fields. With Fisher certificate #174177. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $350 - 500