Crispus (Caesar, 316-326) AE Follis (Bronze, 4.20g, 20mm) Cyzicus
Obv: D N FL IVL CRISPVS NOB CAES, laureate, draped and cuirassed bust right
Rev: IOVI CONSERVATORI, Jupiter standing left, holding Victory on globe and sceptre with eagle on top, eagle at foot left with wreath in its beak, bound captive to right on ground; X/ IIΓ to right; SMKΔ in exergue.
Ref: RIC VII 17.