Denarius

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 letters P and H).

BAR _ CINO _ NA (inscribed in three lines, a triangle to the right of the letter A of NA).

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/btv1b10413571b.r=louis%20le%20pieux?rk=2918469;2.

Several copies seen with the triangle to the right of NA, on the reverse, uncertain. However, we always seem to see a rest of triangle... So I chose not to create a line "without triangle". I'm waiting to see a copy with the totally smooth surface there. Some copies listed below are among these coins with an uncertain triangle.

Another copy preserved at the Münzkabinett der Staatlichen Museen of Berlin, link to the page of their website showing the photo of the coin: http://www.smb-digital.de/eMuseumPlus?service=ExternalInterface&module=collection&objectId=2355504&viewType=detailView. The copy that most seems to have no triangle on the reverse, but it may have disappeared and the surface seems to have remains of relief.

Yet two other copies preserved at the Bibliothèque Nationale de France (public domain), link to the page of their website showing the photo of the first coin: https://gallica.bnf.fr/ark:/12148/btv1b10413570w.r=louis%20le%20pieux?rk=2682416;4. Link to the second coin: https://gallica.bnf.fr/ark:/12148/btv1b10413569h.r=louis%20le%20pieux?rk=2875550;4.

One coin sold by Jean Elsen & ses Fils S.A., link to the sale and their website: http://www.elsen.eu/Auction-132/MOYEN-AGE-334-413/HAUT-MOYEN-AGE-DARK-AGES-334-363/emodule/1274/eitem/35036.

Another coin sold by Numismatica Genevensis SA, link to the sale: https://www.acsearch.info/search.html?id=6500574.