Postumus, AE antoninianus. Milan. 3.31 g.

IMP C POSTVMVS PF AVG, radiate, draped and cuirassed bust right.
VIRTVS EQVITVM, Hercules standing right, holding lionskin and resting on club, right hand on his hip.
No mintmark or fieldmark.

Doyen 1070; AGK 112; Pedernec (F) hoard 374 (this coin). Not in RIC.

Image from the Pedernec hoard.