Potosi, Bolivia, cob 8 reales, Philip III, assayer not visible, Grade 4 ("1 point"), with hand-signed certificate from 1976. KM-10. 11.35 grams. Thin from corrosion yet most shield and cross detail still present, desirable early Atocha find. With 1976 tag and photo-certificate 3142 (Cape Coral Bank) hand-signed by Mel Fisher and others. From: Atocha, sunk in 1622 west of Key West, Florida
($200-300)