Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer M, Grade 1. S-P18; KM-10; CT-123. 26.72 grams. Full P-dot-M, full but partially flat shield and cross, no corrosion, choice specimen for this wreck. With Fisher photo-certificate #80M-8376. Recovered from: Santa Margarita, sunk in 1622 west of Key West, Florida

Estimate: $400 - 600