Gallienus, AR Antoninianus, 257 (Zschucke) 258 (RIC), Joint Reign, Lugdunum (RIC), Cologne (Zschucke) IMP GALLIENVS P AVG Radiate, cuirassed bust right IOVI VI_CTORI Statue of Jupiter standing facing, head left, vertical spear (scepter?) in left hand, Victory in right, surmounting cippus inscribed IMP / C E S 21mm x 23mm, 2.90g