Constantine I 'the Great' (307/10-337 AD). Siscia
AE Follis (19,3mm 2,2g)
Obv: CONSTANTINVS AVG. Helmeted, draped and cuirassed bust of Constantine I to right.
Rev: Vexillum inscribed VOT / XX between two captives; in left field, captive seated to left, his hands bound behind his back; in right field, captive seated to right, his hands unbound, rasing his head towards vexillum.
RIC 120