FRANCE / CAROLINGIENS - FRANCE / CAROLINGIAN Louis the Pious (814-840). Obola, class 2 ND (819-822), Rouen. Av. + H LVDOVVICVS IMP. Cross. Rv. In two lines, around a central bezant: ROTV / M[V]G[V]S. P.- (cf. 376, denarius) - MG.- (cf. 366, denarius) - MEC.- ; Silver - 0,87 g - 16 mm - 4 h With a small test mark on the edge. The surfaces slightly corroded, with black patina (fire). Very rare with perhaps 3 known examples in obole! VERY GOOD.