Constantine II (317-337) AE (Bronze, 2.88g, 19mm) Cyzicus, under Constantine I, 317/18.
Obv: D N FL CL CONSTANTINVS NOB C, laureate and mantled bust of Constantine II left, holding mappa, globe and scepter
Rev: IOVI CONSER-VATORI CAESS, Jupiter standing facing, head left, holding Victory on globe and scepter; (wreath)-E//SMK.
Ref: RIC 12