Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer not visible, Grade 4 ("1 point"), with hand-signed Fisher certificate from 1976. KM-9. 6.12 grams. Sliver-thin from corrosion and with heavy dark oxidation all over, the cross and shield still clear. With original tag and photo-certificate #3238 from 1975 (Cape Coral Bank) hand-signed by Mel Fisher, Dolores Fisher, Eugene Lyon, R. Duncan Mathewson and Austin Fowles. From: Atocha, sunk in 1622 west of Key West, Florida
($300-450)