Rare antoninianus of Probus.
Roman Imperial
Probus (276-282), Antoninianus 279-280, Siscia mint
Obverse: radiate and cuirassed bust right
IMP C PROBVS P F AVG
Reverse: radiate lion advancing right, holding thunderbolt in its jaws, XXIQ in exerque
P M TRI P COS III P P
Weight 4.1 g