Watch List notes:

Potosi, Bolivia, cob 4 reales, 1750q, rare. S-P50a; KM-39. 11.90 grams. Full but doubled pillars with clear date and assayer (missing in Sellschopp and Karon), full cross, darkly toned, light surface corrosion, crude edge (as made). With hand-signed photo-certificate from the salvager (Collado). Recovered from: Luz, sunk in 1752 off Montevideo, Uruguay
($200-300)