Watch List notes:

Potosi, Bolivia, cob 4 reales, 1653E, retrograde-4 denomination, PH at top. Janson-24.1.3.; S-P37a; KM-18; CT-741. 13.06 grams. Good full cross-lions-castles, one full pillar with bold date and denomination, clear PH, no corrosion but peripherally flat, edge-split. Pedigreed to the Rob McClung collection. Capitana, sunk in 1654 off Chanduy, Ecuador

Estimate: $300-450