Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer R (curved leg), Grade 3. S-P21; KM-8. 4.74 grams. Full but doubled cross and shield, light to moderate corrosion, toned in crevices. With Fisher photo-certificate #165510 (assayer not stated on certificate). Atocha, sunk in 1622 west of Key West, Florida

Estimate: $300-450