City Commemorative AE (Bronze, 2.57g, 18mm) struck under Constantine I (307-337) Cyzicus, 331-334.
Obv: CONSTANTINOPOLI, pearl-diademed, helmeted and mantled bust of Constantinopolis to left, holding spear
Rev: Victory standing to left, foot on prow, holding spear and resting hand on shield set on ground; SMKS in exergue.
Ref: RIC VII 93.