Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer M/Q, Grade 2. S-P18; KM-9; Cal-unl. 10.63 grams. Oblong flan with full cross and nearly full shield, the latter with full P-M/Q to left, silvery but toned in crevices. (Note: Tag and certificate do not mention M/Q.) With original Fisher tag and certificate 85A-156111, pedigreed to the J.P. Silberman Estate.Recovered from: Atocha, sunk in 1622 west of Key West, Florida.

Estimate: $700 - $1000