Constantine I the Great (307-337) Commemorative Series, 330-354 AE Follis (Bronze, 2.30g, 18mm) Nicomedia, 335.
Obv: VRBS ROMA Helmeted and mantled bust of Roma to left.
Rev: SMNS She-wolf standing left, suckling Romulus and Remus; above, two stars and three pellets.
Ref: RIC 195