Gallienus, Joint Reign (AD 253-268). BI antoninianus (21mm, 1h). NGC MS, Silvering. Asia, AD 255-256. IMP C P LIC GALLIENVS P F AVG, radiate, draped and cuirassed bust of Gallienus right, seen from behind / PIETAS AVGG, Valerian and Gallienus standing facing each other, both holding scepters and sacrificing from paterae over lit altar between; star above. RIC V.I 447.