ROMAN EMPIRE, Licinius II VOT XX Gamma SIS Star

note from Dane from Helvecta
LICINIVS IVN NOB C or LICINIVS IVN NOB CAES are all VOT V reverses and are on the VOT V page of my list (RIC 154, 155, 162), or they have different reverses types such as trophy with captives, Victoriae Laetae etc.
There are no Licinius II coins with a VOT XX reverse in RIC except one single coin: RIC VII Rome 212 with the mintmark RP and even that one should be seen as dubious. Licinius II was Caesar for only 7-8 years, from 317 to 324 AD. A VOT X would be suitable, but not one repeating his vows for 20 years.
In addition, the obverse legend of this coin is very peculiar without the full name, simply being (as far as I can see) LICIN LICIN IVN dot H AES, so no LICINIVS which should be there somewhere. And finally, the gamma of the mintmark is quite poor, resembling more an I than a gamma.

So in my opinion it is an ancient imitation - Dane