Gallienus (253-268). BI Antoninianus, Rome mint, 260-268. Obv. GALLIENVS AVG. Radiate head right. Rev. NEPTVNO CONS AVG. Hippocamp or capricorn, right. RIC V 245k. 2.95 g. 19.50 mm. Uneven toning with partly green patina in various shades. Good VF.