Very nice and slightly rarer, antoninianus of the Gallic usurper Postumus, minted at Lugdunum (today's Lyon).
Roman Imperial
Postumus (260-269), Billon Antoninianus 260-265, Lugdunum mint
Obverse: radiate, draped and cuirassed bust of Postumus right
IMP C POSTVMVS P F AVG
Obverse: Fides standing left, holding standards
FIDES MILITVM
Weight 2,77 g.