Roman Imperial
Constantine II, as Caesar ( 317-337 AD). Kyzikos
AE Follis (19.1mm, 2.8g)
Obv: CONSTANTINVS IVN NOB C, laureate, draped and cuirassed bust left.
Rev: PROVIDENTIAE CAESS, camp gate, with two turrets and open doorway; star above; SMKΓ.
RIC 26.