Could it be SMANT in exergue? Or SMAN ?
Obv. D N CONSTAN - TIVS P F AVG & Rev. VOT/XX/MV•LT/XXX -----> Constantius II.
Hi, Matthew, I think the mintmark may be something like "SMH?" = mint of Heraclea. So it could be RIC VIII Heraclea 45 or 59 ?
I'm easily convinced that I am certainly wrong about the AN, but the last character on the right
side looks like it has a right angle to me (T was my first impression, but for
Heraclea would
work). I could be wrong about that too, of course, and if you can make out an H, but not what I'm seeing, then I probably am.
edit: yep, I think I am wrong - it seemed clearer last night when I was sleepy...