I don't know how why this one languished in "Unidentified" for so long, but it's been identified correctly. The chi-ro symbol on the labarum is particularly clear.
The only thing uncertain is the mintmark; it has a central "I", which makes me think Siscia mint. Example on Wildwinds
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis