City Commemorative AE Follis (Bronze, 1.48g, 18mm) Struck under Constantine I, Nicomedia, 330-335.
Obv: VRBS ROMA, helmeted and cuirassed bust left
Rev: She-wolf standing left, suckling the twins Romulus and Remus; three pellets between two stars above; SMNB in exergue.
Ref: RIC 195.