Hi, I need to identify this roman coin. The diameter is around 17mm, I don't have a scale so I don't know how much it weights.
From what I can tell, it should say
Obverse: D N CONSTAN TIVS [P F AVG]
bust is facing right
Reverse: [FEL TEMP] REPARATIO
should be a Soldier spearing a fallen horseman
outside of the brackets it's what I can see in the coin
Here are the pictures, I apreciate any help. Thanks!

