Watch List notes:

Potosi, Bolivia, cob 4 reales, (1650-1)O, with pentagonal crowned-1652 countermark on cross, extremely rare on this denomination. S-P35; KM-17b. 13.30 grams. Solid and uncorroded coin with full but weak shield (slightly doubled) and cross, bold assayer and countermark, nicely toned on fields. Recovered from: Capitana, sunk in 1654 off Chanduy, Ecuador

Estimate: $800 - 1200