Potosi, Bolivia, cob 8 reales, Philip II, assayer B (4th period), Grade 1, with hand-signed certificate from 1982. S-P12; KM-5.1; Cal-672. 21.75 grams. Broad flan with choice full crown, also full shield and cross but lightly to moderately corroded all over, lightly toned, desirable pre-"Mother Lode" certificate. With original Fisher tag and photo-certificate SR-1298 from 1982, hand-signed by Leah Miguel, pedigreed to the J.P. Silberman Estate.Recovered from: Atocha, sunk in 1622 west of Key West, Florida.