Roman Imperial
Constantine I 'the Great' (307/310-337 AD). Antioch
AE Follis (17.1mm 2.99g)
Obv: CONSTANTINVS AVG, laureate head to right
Rev: PROVIDENTIAE AVGG, camp gate with two turrets and pellet in open doorway, star above; SMANTB in exergue.
RIC VII 81