Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer not visible, Grade 1. KM-9. 13.41 grams. Full shield and cross with some flat spots, crude edge (as made) but no corrosion, typically silvery. With Fisher photo-certificate #246687. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $400 - 600