RIC V Gallienus 245k: Subtype 4
Denomination: antoninianus
Material: ar
Authority: gallienus
Mint: rome
Manufacture: struck
Date: 0260 to 0268
Obverse legend: GALLIENVS AVG
Obverse: Head of Gallienus, radiate, right
Obverse portrait: gallienus
Reverse legend: NEPTVNO CONS AVG
Reverse: Hippocamp or capricorn, right