Roman Imperial
Constantine II, as Caesar (316-337 AD). Nicomedia
AE Follis (20.5mm 3.28g)
Obv: CONSTANTINVS IVN NOB C Laureate, draped and cuirassed bust of Constantine II to right.
Rev: PROVIDENTIAE CAESS / SMNS• Campgate with no doors and two turrets; above, star.
RIC 157