Watch List notes:

Potosi, Bolivia, cob 8 reales, 1650 O, date at top of cross with modern 5 and dots between digits, with crown-alone countermark on shield. S-P35; KM-unl; Cal-unl. 24.02 grams. Dark and corroded but with clear (albeit doubled) date .1.6.5.0. outside a full cross, also with choice full crown above full shield with half of countermark near center and bold assayer to right. Recovered from: Capitana, sunk in 1654 off Chanduy, Ecuador.

Estimate: $200 - $300