Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer Q, Grade 3. S-P17; KM-8; CT-353. 3.56 grams. Good full cross, corroded shield, deeply toned all over. With Fisher photo-certificate #240501 (assayer not stated on certificate). Atocha, sunk in 1622 west of Key West, Florida

Estimate: $300-450