Watch List notes:

Potosi, Bolivia, bust 4 escudos, Charles IV, 1803PJ, rare, encapsulated NGC AU 53 (only specimen in NGC census). KM-80; CT-254. Bold strike and lustrous, faintly toned, looks MS or at least AU 58 but with a couple tiny marks restricting its grade, still remarkable as the only specimen slabbed by NGC (finest specimen on record).

Estimate: $4000