Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip II, assayer C below erased B/L, no Grade, very rare, ex-Atocha Research Collection coin #4 (Plate Coin). S-P5; KM-5.1; CT-136 (under La Plata). 25.38 grams. Bold P-erasure-C (the erasure believed to be B/L) to left of a full and well-detailed shield, the cross-lions-castles also full and bold, lightly toned and with light corrosion only in part of the periphery, an excellent example of this classic rarity that was once believed to be La Plata but was attributed to Potosi upon discovery of documents presented in 1988 (after the bulk of Atocha coins were certified) to the effect that Rincon was the first assayer of Potosi, this piece one of very few known from the Atocha and further desirable for its Research Collection pedigree. Pedigreed to the Classics collection and to the Charles Eidel collection, with Fisher tag and special Fisher photo-certificate #237189 and plated on plate number 1 in the Atocha Research Collection catalog of 1988. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $3500-7000