Watch List notes:

Potosi, Bolivia, cob 4 reales, 1653E, retrograde-4 denomination. Janson-24.1.3.; S-P37a; KM-18; CT-741. 10.67 grams. Squarish flan with bold date, one full pillar, good full waves, full POTOSI, nearly full cross, nicely toned but lightly corroded. Pedigreed to our Auction #11, with original lot-tag #363. Capitana, sunk in 1654 off Chanduy, Ecuador

Estimate: $300-450