Watch List notes:

Potosi, Bolivia, cob 8 reales, 1651E, with crown-alone (common variety) countermark on shield. S-P36; KM-19b; CT-511. 25.85 grams. Full date, good full shield and cross, full crown, clear P-E and 8-E, full king's name and ordinal in legend, nice toning, corrosion and split on edge. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #0081. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($300-450)