Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer M, quadrants of cross transposed, Grade 2. S-P18; KM-8. 6.14 grams. Nice full shield, full but off-center cross, light surface corrosion. Pedigreed to the Classics collection, with Fisher tag and certificate #126842. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $600-900