Constantius II Fel Temp Raparatio

Obverse:
Pearl-diademed, draped and cuirassed bust right
D N CONSTAN - TIVS P F AVG
D N: Dominus Noster, our lord
CONSTANTIVS: Constantius
P F: Pius Felix, Pious and happy
AVG: Augustus, emperor

Reverse:
FEL TEMP RE - PARATIO / happy times are here again
FEL: Happy
TEMP: Time
REPARATIO: Restoration
Soldier spearing fallen horseman.
Domination: Bronze AE4, size 16 mm
Mint: ?

it is not clear in the picture, but the bust looks bare-headed, if so it must be a caesar. Plus I seem to be able to make out part of the obverse legend as NOB CAES. There also looks like an M on the reverse in the left field which can narrow it down.