Gallienus, Antioch, AR antoninianus GALLIENVS AVG, Radiate and draped bust right P M TR P XV P P, Neptune standing left, right foot on small prow, right forearm resting on knee, holding a tall trident behind him. VIIC (dot) in ex. Ref: RIC 603 Sear (2005) 10328; RIC V Sole Reign 603; Göbl 1638a This coin is dated to 266-267 CE by the exergual mark, VIIC, which means COS VII. Contributed by Bill Welch, July 2009