Potosi, Bolivia, cob 8 reales, 1650O, with crown-alone countermark on shield. S-P35; KM-19b; CT-509. 18.70 grams. Very broad flan with full shield and cross (the latter somewhat flat from the full countermark on the other side), bold date, clear mintmark-assayer and denomination, toned, but thin and pitted from corrosion. With MAREX tag #91-8R-0886. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island
($300-450)