CARo _ LVS (inscribed in two lines).
LEO _ DICO (inscribed in two lines, one globule between the letter E and the letter I).
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/btv1b104125102.r=charlemagne%20denier?rk=793995;2.
|N°||G||F||XF 40||AU 58||MS 63||MS 65|
Seems never to have gone on sale.