Postumus Billon denarius. AD 260-269. Cologne. 2.72 g. 

POSTVMVS PIVS FELIX AVG, jugate busts right of Postumus, laureate and cuirassed, and Hercules, laureate.
FELICITAS TEMP above and beneath galley left with four rowers and standard.

RIC V-II Cologne 339; Cohen 55; Elmer 574 (this coin); De Witte IV 47 (this coin).

With permission of UBS Gold & Numismatics auction 78, Lot 1891, Sept. 2008.