Watch List notes:

Potosí, Bolivia, cob 2 reales, Philip III, assayer T, backwards G in legend, Grade 1. S-P21; KM-8. 6.32 grams. Very choice full shield and denomination Z and mintmark-assayer P-T, full but lightly corroded cross, nice toning. With original Fisher certificate #221832. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $400 - 600