Potosi, Bolivia, cob 4 reales, Philip III, assayer Q, Grade 2, replacement certificate. S-P17; KM-9; CT-243. 12.24 grams. Good full shield with clear P-Q, full but off-center cross, very light surface corrosion. With Fisher tag #189650 and replacement photo-certificate from HRC. Recovered from: Atocha, sunk in 1622 west of Key West, Florida ($250-375)