Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer not visible, Grade-1 quality but no Grade on certificate. KM-10. 26.16 grams. Choice full cross and shield, no corrosion, mostly toned. With Fisher certificate #133983. Atocha, sunk in 1622 west of Key West, Florida

Estimate: $400-600