Potosi, Bolivia, bust 4 escudos, Charles IV, 1803PJ, rare, encapsulated NGC AU 53, finest and only specimen in NGC census. CT-254; KM-80. Bold strike and lustrous, faintly toned, looks MS or at least AU 58 but with a couple tiny marks restricting its grade (also small natural flaws on cheek), still remarkable as the only specimen slabbed by NGC (finest specimen on record). NGC 4226247-011. (Estimate: $4000 - 6000)