Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer Q/R (rare), Grade-1 quality but no Grade on certificate. S-P17; KM-9. 12.99 grams. Bold P-Q with clear Q/R, full but partially flat shield, good full cross, round flan, corrosion-free. With Fisher certificate #146652. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $500 - 750