TYPE Roman Empire, Constantine I the Great (307-337 AD), AE3 (bronze), Siscia mint, off. B DESCRIPTION . Obv: Diademed head of Constantine to right, Latin legend CONSTANTINVS AVG Rev: Camp gate with turrets, star above, circular Latin legend PROVIDENTIAE AVGG, BSIS in ex. REFERENCE: SR 3878 GRADING: AEF, green patina with some earthen highlights ORDER INFO: R1485, $32