Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer T, quadrants of cross transposed, Grade 1, ex-Christie's. S-P21; KM-10. 26.71 grams. Full cross-and-tressure with partial date (could be the bottom of 622), choice full shield with bold denomination O-VIII, clear but weaker P+T, minimal surface corrosion, nicely toned. With Fisher tag and photo-certificate #119326, also with original lot-sticker #268 as from the original Christie's (New York) Atocha auction of June 1988. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $600-900