Constantius II
A.D. 337- 341
15mm 1.3 gm
CONSTANT-IVS PF AVG laurel and rosette diademed, draped and cuirassed.
GLOR-IA EXERC-ITVS [The glory of the army] Two soldiers helmeted, stg. facing one another, reversed spear in outer hands, inner hands on shields resting on the ground; between them one standard inscribed with a Chi-Rho
In exergue it looks like AQP
copying RIC VIII Aquileia 33
I think this is an unofficial coin, though in very good style and could have passed as official. There are a few elements that don't look normal...mainly though, the obverse bust looks a bit off and the diadem looks more like a bandana. The Chi-Rho on the reverse is also much larger than usual.