RIC V Gallienus (joint reign) 447a: 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: PIETAS AVGG
Reverse: Gallienus and Valerian, standing face to face, sacrificing at altar; right figure holding patera in right hand and parazonium in left hand (?); left figure holding patera in right hand and eagle-tipped sceptre in left hand
Reverse portrait: gallienus