Diocletian (AD 284-305)

Obverse: IMP C C VAL DIOCLETIANVS P F AVG (variant AVG also recorded), radiate, draped and cuirassed bust right, seen from front

• Reverse: CONCORDIA MILITVM, Diocletian standing right (left on the coin), holding grounded scepter, receiving Victory on globe from Jupiter standing left with scepter; A in centre field, XXI in exergue

• Mint / officina: Antioch, 1st officina (A)

• Reference: RIC V.II 306 – exactly the type Heritage describes as "Antioch, 1st officina... A in central field, XXI in exergue"