RIC V Gallienus (joint reign) 456a: Subtype 1
Denomination: antoninianus
Material: ar
Authority: valerian
Mint: uncertain_value
Manufacture: struck
Date: 0255 to 0256
Obverse legend: IMP C P LIC GALLIENVS P F AVG
Obverse: Bust of Gallienus, radiate, draped, right
Obverse portrait: gallienus
Reverse legend: VIRTVS AVGG
Reverse: Gallienus and Valerian, in military attire, standing face to face, one holding Victory and the other holding globe
Reverse portrait: gallienus