Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer Q, quadrants of cross transposed, Grade 3. S-P17; KM-10; CT-124. 18.12 grams. Tangential piece of edge lost to corrosion and surface corroded but with good full cross and clear assayer, deeply toned. With Fisher tag and photo-certificate #173761. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $300-450