Watch List notes:

Potosi, Bolivia, cob 8 reales, 1651E, Latin 5, mintmark P punched over denomination 8 (unique error), with crown-alone (common variety) countermark on shield. S-P36; KM-19b; CT-511. 24.06 grams. Oval flan with 100% full and bold date, full P-E to left with the P punched over an 8 (first instance of this error that we've seen), full cross and shield but peripheries flat and lightly corroded, bold but incomplete countermark, toned fields. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #0053. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($400-600)