Watch List notes:

Potosi, Bolivia, cob 8 reales, 1650O, date as 1.6.5.0. (modern 5), rare, with crowned-(?) countermark on cross. S-P35; KM-unl. (cf. 19b); CT-unl. (cf. 509). 26.17 grams. Broad flan with full legends (doubled) and shield and cross, full P-O and 8-O, clear date, full crown in countermark but letter below indistinct, minimal corrosion, nicely toned. Pedigreed to the Ponterio auction of April 1999, with original catalog (hand-signed by Lou Ullian) and lot-tag #117. Recovered from: Capitana, sunk in 1654 off Chanduy, Ecuador

Estimate: $500 - 750