Watch List notes:

Potosi, Bolivia, cob 1/2 real, (16)52(E) Transitional, McLean Type IId. S-P37; KM-13; CT-1177. 0.67 gram. Small and thin from corrosion but with clear P-LV-(SV) / LT-R-A and date in legend, lightly toned. With photo-certificate #MO15016 from the salvager. Recovered from: Consolacion, sunk in 1681 off Santa Clara Island, Ecuador

Estimate: $60 - 90