Watch List notes:

Potosi, Bolivia, cob 4 reales, 1652E, post-transitional. S-P37a; KM-18; CT-735. 10.55 grams. Superb full cross-lions-castles and pillars-and-waves despite very light surface corrosion, nicely toned all over, two bold dates. Pedigreed to the Rob McClung collection. Capitana, sunk in 1654 off Chanduy, Ecuador

Estimate: $300-450