Potosi, Bolivia, cob 4 reales, Philip III, assayer not visible, Grade 1. KM-9. 8.65 grams. Well-detailed full shield, full but corroded cross (also some minor edge-loss, still Grade 1 on certificate), toning in crevices. With Fisher tag and certificate #174172.Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($500-$750)