France
Carolingian. Charlemagne (768-814) Denier 793/4-812, Arles mint, Roberts-1003, MEC-738, Dep-57, Mint State. + CARLVS R•EX FR, Karolus monogram within beaded border / + AR•ELATO, short cross pattée. Having been struck with rusted dies, the surfaces of this piece appear somewhat patchy but this cataloger notes no actual circulation wear or corrosion on the coin itself. In fact, the surfaces that remain unaffected by the die rust are quite lovely. A very scarce issue.
Estimate: 2000-2500 USD