Not the best condition, but an interesting type that is fairly rare.
Constantine I
A.D. 306- 307
Ӕ follis 28mm 8.0g
CONSTANTINVS NOB CAES; Laureate, helmeted and cuirassed bust right, pointing spear downwards with right hand, holding two spears and shield with left.
VIRTVS AVGG ET CAESS N N; Mars, helmeted, advancing right and holding spear and trophy
In ex. AQΓ
RIC VI Aquileia 98b
here is a nicer example for comparison that looks like a die match