Potosi, Bolivia, cob 8 reales, 1650O, early-style date, with crowned-S countermark on cross. S-P35; KM-19b; CT-509. 27.98 grams. Broad flan with choice full shield, bold P-O and 8-O, nearly full countermark (very scarce) in center of full cross, clear date, no corrosion, lightly toned, hairline edge-split. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #1525. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($1000-1500)