Diocletian (284-305) AE Antoninianus (23mm, 3.39g) Antiochia, 284.
Obv: IMP C C VAL DIOCLETIANVS P AVG Radiate, draped and cuirassed bust of Diocletian to right.
Rev: IOVI CONSERVATORI AVGG / XXI Diocletian, on the left, holding parazonium in his left hand and receiving Victory on globe from Jupiter, on the right, holding long scepter in his left hand.
Ref: RIC 585