Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer M, Grade 3, ANACS VF 20 / 1622 Santa Margarita Wreck. S-P18; KM-10; Cal-919. Well-detailed full shield with clear P-M to left, full but heavily corroded cross, unevenly toned. ANACS #5328701. With original Fisher photo-certificate 3289 (tag missing, assayer not mentioned) from 1982. From: Santa Margarita, sunk in 1622 west of Key West, Florida
($300-450)