Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer M, Grade 1. S-P18; KM-10; Cal-919. 22.18 grams. Round and finely detailed despite light surface corrosion all over, the cross and shield both full, assayer very weak, curious eight-point star ornament in legend on reverse. With Fisher tag and certificate 117956. From: Atocha, sunk in 1622 west of Key West, Florida
($600-900)