Watch List notes:

Potosi, Bolivia, cob 8 reales, 1651O, with crowned-dot-F-dot countermark on shield. S-P35; KM-19b; CT-510. 22.37 grams. Choice full inner details with bold full countermark, also bold date, but much of edge corroded and some surface corrosion as well, toned all over. With Marex tag #91-8R-1186. Maravillas, sunk in 1656 off Grand Bahama Island

Estimate: $350-500