I did manage to take a better pic, which... made the whole thing even more complicated.

My current best guess at the legend: DN [I]VLIVS [O?]xx[E?]x[O?][S?] PP AV.
(Also, if that helps, that's a rho-cross in the wreath, not a plain cross.)
The problem is that "IVLIVS" is fairly clear, but I see no way to get "NEPOS" out of the next 6-7 letters, and I can't find any other name that would qualify.
I really liked the "Libius Severus" solution, but the fourth letter (second after DN) is clearly V, so I don't know how to interpret that any more.

My current best guess at the legend: DN [I]VLIVS [O?]xx[E?]x[O?][S?] PP AV.
(Also, if that helps, that's a rho-cross in the wreath, not a plain cross.)
The problem is that "IVLIVS" is fairly clear, but I see no way to get "NEPOS" out of the next 6-7 letters, and I can't find any other name that would qualify.
I really liked the "Libius Severus" solution, but the fourth letter (second after DN) is clearly V, so I don't know how to interpret that any more.




















