Constantine II as Caesar (317-337). AE Follis, Siscia mint. Obv. CONSTANTINVS IVN NOB. Diademed and cuirassed bust right. Rev. GLOR-IA EXERC-ITVS. Two soldiers facing each other, each holding spear and shield set on ground; two standards between them; in exergue, • €SIS •. 1.98 g. 18.00 mm. About VF.