Watch List notes:

Potosi, Bolivia, cob 8 reales, (16)49O, with crowned-•F• (two dots) countermark on shield. S-P35; KM-19b; CT-506. 26.17 grams. Round flan with full shield showing clear monogram, weak and off-center cross, corrosion only at very edge, tiny edge-split. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #0533. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($350-500)