Watch List notes:

Potosi, Bolivia, cob 8 reales, (16)50O, early-style date, with crown-alone (common variety) countermark on shield. S-P35; KM-19b; CT-509. 26.39 grams. Broad round flan with full countermark on full shield, full cross with clear date, corrosion only near part of edge, small edge-split, toned. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #0461. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($350-500)