^Lot 120 Potosi, Bolivia, cob 8 reales, 1618 T, "16 points," with hand-signed Fisher certificate from 1977.

Potosi, Bolivia, cob 8 reales, 1618 T, "16 points," with hand-signed Fisher certificate from 1977. S-P21; KM-10; Cal-925. 21.53 grams. Superb shield and crown with contrasting toning, bold full P+T and denomination o-VIII, the cross also full but with some surface corrosion and tan encrustation in crevices, most of date visible. With 1977 photo-certificate #410 (Key West Conservation Laboratory) hand-signed by Mel Fisher, Dolores Fisher, Eugene Lyon, R. Duncan Mathewson and conservator. (tag missing, erroneously attributed to "1611" date and assayer R on certificate). From: Atocha, sunk in 1622 west of Key West, Florida