Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer T, quadrants of cross transposed, Grade-1 quality, with original tag but certificate missing. S-P21; KM-9. 13.41 grams. Good full cross, full but off-center shield, light surface corrosion only. With Fisher tag #160625. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $350 - 500