Watch List notes:

Potosi, Bolivia, cob 8 reales, 1649O/Z(?), with crowned-L countermark on cross. S-P35; KM-19b; CT-507. 25.38 grams. Choice full countermark (one of the best we've seen) plus bold full 649 of date, clear assayer (over-assayer not 100% certain), full but partially flat shield and cross, no corrosion except for very edge. With Marex tag #91-8R-0315. Maravillas, sunk in 1656 off Grand Bahama Island

Estimate: $500-750