Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer T, Grade 1, with hand-signed certificate from 1976. S-P21; KM-10; Cal-Type 165. 25.58 grams. Round flan with full but partially weak shield and cross (the latter with natural hammer-mark in center), very silvery surfaces but no corrosion except on very edge (very rare grade for pre-"Mother Lode"). With 1976 photo-certificate 3206 (Cape Coral Bank) hand-signed by Mel Fisher and others. From: Atocha, sunk in 1622 west of Key West, Florida
($800-1200)