Potosi, Bolivia, cob 4 reales, Philip III, assayer T, Grade 1. S-P21; KM-9. 11.70 grams. Choice full shield and cross on a small flan (no periphery), nice toning, light surface corrosion. With Fisher tag and certificate #117449. Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($500-750)