Gallienus, AV Aureus, 257-258, Joint Reign, Mediolanum (RIC), ViminaciumIMP GALLIENVS P F AVG Laureate, cuirassed bust right ORIE_N_S AVGG Jupiter, nude but for chlamys over left shoulder and spread behind, standing facing, head left, right hand raised behind, globe outward in left 19mm x 20mm, 3.77g