Constantine II. As Caesar, A.D. 317-337. BI centenionalis (19.1 mm, 2.98 g, 5 h). Siscia Mint, struck A.D.321-324. CONSTANTINVS IVN NOB C, laureate head of Constantine Jr. right / CAESARVM NOSTRORVM, concentric legend around wreath containing VOT / X in two lines // B SIS (sunrise). RIC 182. Good VF, well centered and struck; green patina.