Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer R (curved leg). 18.00 grams. Bold full cross, somewhat crude from corrosion, the reverse (only) darkly toned. Pedigreed to the David Horner collection. Recovered from: San Martin, sunk in 1618 off the east coast of Florida

Estimate: $125 - 200