France
Carolingian. Charles the Simple (898-929) Immobilized Type Denier c.955-960 or later MS61 NGC, Melle (Metallum) mint, Depyrot-629. + CΛRLVS (retrograde S) REX R, short cross pattée in beaded border / MET | ΛLO, mint name in two lines. A stunning example, toned with residual luster.
Estimate: 500-700 USD