Denarius, type 1

Obverse

Obverse legend

Reverse legend

Reverse

HLVDOVVICVS IMP (circular legend around a cross surrounded by a circle made up of dots, a cross between the letter P and the letter H).

MO _ GON _ TIA _ CVS (inscribed in four lines).

Photo of the copy preserved at the Bibliothèque Nationale de France (public domain), link to the page of their website showing the photo of the coin: https://gallica.bnf.fr/ark:/12148/btv1b104124455.r=louis%20le%20pieux?rk=965670;0.

Another coin sold by Jean Elsen & ses Fils S.A., link to the sale: https://www.acsearch.info/search.html?id=6059857. same obverse coin as the copy preserved at the Bibliothèque Nationale de France.

We see on the two currencies (that of the Bibliothèque Nationale de France and that of Jean Elsen & ses Fils S.A.) have a letter P on the obverse looking like the letter D. A coin from the Meaux mint also has this same letter ''D'' at the end of the legend, link to the coin sold by iNumis: https://www.acsearch.info/search.html?id=1390925.