Diocletian (284-305 AD). Antioch
AE Antoninianus (22.1mm 4.2g)
Obv: IMP CC VAL DIOCLETIANVS PF AVG. Radiate, draped and cuirassed bust right
Rev: CONCORDIA MILITVM. Jupiter presents Victory on a globe to Diocletian, Z between them, XXI in exergue
RIC 284