RIC V Gallienus (joint reign) 368
Denomination: antoninianus
Material: ar
Authority: valerian
Mint: mediolanum
Manufacture: struck
Date: 0258 to 0258
Obverse legend: GALLIENVS AVG
Obverse portrait: gallienus
Reverse legend: LEG XXX VLP VI P VI F
Reverse: Neptune, nude except for cloak draped over shoulders, standing right, holding trident in right hand and dolphin in left hand
Reverse portrait: neptune