Constantine II as Caesar (317-337). AE 19 mm, Siscia mint, 321-324. Obv. CONSTANTINVS IVN NOB C. Head of Constantine II, laureate, right. Rev. CAESARVM NOSTRORVM. VOT/X within a laurel wreath. RIC VII Siscia 182. 3.39 g. 19.00 mm. About EF.