Crispus Caesar, AE 3, Siscia AD 320 IVL CRISPVS NOB CAES, laureate cuirassed bust left, holding spear and shield. VIRTVS EXERCIT, standard with VOT-X with two captives sitting at its base. S-F across fields. Mintmark Gamma SIS star. RIC VII 113. Contributed by Hans-Joachim, August, 2004.