Roman Imperial
Diocletian (284-305), Antoninianus 291, Heraclea mint
Obverse: radiate, draped bust right
IMP C C VAL DIOCLETIANVS P F AVG
Reverse: Emperor in military attire standing to the right, receiving Victoria on the globe from Jupiter standing to the left, leaning on scepters, in the field between them EΔ, XXI in exergue
CONCORDIA MILITVM
Diameter 21 mm, weight 3.82 g