Watch List notes:

Carolingians. Louis the Pious. 814-840. AR denier (20 mm, 1.70 g, 12 h). Melle, ca. 819-822. + HLVDOVVCVS IMP, cross pattée / + METALLVM, cross pattée. Depeyrot 611; Morrison & Grunthal 400; Roberts 1181. Toned, tiny hairline flan crack. Very fine. 

Ex Michael Joffre Collection (CNG E344, 12 February 2015), 540.