Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer not visible, quadrants of cross transposed, Grade 4. KM-9. 9.40 grams. Interesting shape with interior hole from corrosion (also some edge-loss), bold full cross, most of shield. With Fisher photo-certificate #228222. Recovered from: Atocha, sunk in 1622 west of Key West, Florida
(150 - 225 USD)