Watch List notes:

Potosi, Bolivia, cob 4 reales, (1649-50)O, with crowned script-L countermark (extremely rare) on cross. S-P35; KM-17b. 11.29 grams. Full countermark (Ullian Type MM but with border of dots), full but off-center cross and shield, bold assayer despite light surface corrosion, toned, with three edge-cracks. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #0665. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($1500-3000)