Constantine I the Great (307-337) AE (Bronze, 2.72g, 19mm) Cyzicus, 2nd officina, ca. AD 324-325. CONSTAN-TINVS AVG, laureate head of Constantine I right / PROVIDEN-TIAE AVGG, campgate with six layers, two turrets, star above, no doors; SMKB below. RIC VII 24