Watch List notes:

Potosi, Bolivia, cob 8 reales, 1667E, Philip IV (rare). S-P37a; KM-21; CT-unl. 26.59 grams. Bold full pillars-and-waves and cross, clear date, three mintmarks and assayers, some flatness but no corrosion, toned around details, king's ordinal IIII visible in legend. With photo-certificate. Recovered from: Unidentified ca.-1671 wreck in Seville harbor, Spain

Estimate: $250