Potosi, Bolivia, bust 4 reales, Charles III, 1778JR, NEX instead of REX in legend, very rare, ex-Sellschopp. KM-54; CT-1183. 13.32 grams. AVF with rich old toning all over (darker around details), a couple very minor natural flan flaws but otherwise a very presentable example of an egregious and highly sought error, also a desirable pedigree. Pedigreed to the Sellschopp collection (SBC auction of September 1988), with original lot-tag #962. (Estimate: $2000 - 3000)