Constantine I, The Great, 307 - 337 AD AE Follis, Cyzicus Mint, (21mm, 3.2 g) Obverse: IMP C FL VAL CONSTANTINVS P F AVG, Laureate head of Constantine right. Reverse: IOVI CONSERVATORI, Jupiter standing left with chlamys over shoulder holding Victory on globe and scepter, eagle with wreath in beak at his feet to left, B in right field, SMK in exergue.