Watch List notes:

Potosi, Bolivia, cob 8 reales, •1•6•5•0•, modern 5, assayer O, with crowned-(?) countermark on cross. S-P35; KM-unl.; CT-unl. 25.81 grams. Choice full date, nice full shield and cross but countermark in center incomplete, nicely toned, minimal surface corrosion. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #0021. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($500-750)