Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer M, Grade 3 (estimated), no Grade on certificate. S-P18; KM-10; Cal-919. 20.86 grams. Full but corroded shield (large) and cross (the latter somewhat flat), just the right side of P-M visible, With Fisher tag and certificate 105669 (assayer not mentioned). From: Atocha, sunk in 1622 west of Key West, Florida
($400-600)