Postumus Billon denarius. AD 260-269. Cologne. 3.46 g. 

POSTVMVS PIVS FELIX AVG, jugate busts right of Postumus, laureate and cuirassed, and Hercules, laureate.
HERCVLI ARCADIO, Hercules, half-kneeling on the Ceryneian Hind, grasping its antlers.

RIC V-II Cologne 340; Elmer 467; Paris F3599; Mairat 412.

Courtesy of the Bibliotheque Nationale, Paris, gallica.bnf.fr.