Watch List notes:

CAROLINGIANS. Charles le Simple (the Simple). As Charles IV, King of West Francia, 898-922. AR Denier (22mm, 1.63 g, 9h). Metalo (Melle) mint. + CΛRLVS REX R, cross pattée / MET/ΛLO in two lines. Depeyrot 629 var. (obv. legend); M&G –; MEC –; Fécamp 8381–7. EF, lightly toned, underlying luster.