Watch List notes:

Potosi, Bolivia, cob 8 reales, 1650O, early-style date, with crowned-L countermark on cross. S-P35; KM-19b; CT-509. 23.98 grams. Bold full countermark, clear date outside of full cross, full shield with bold P-O and king's ordinal IIII, lightly toned, with corrosion only near edge, edge-split. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #0513. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($300-450)