Gallienus, 253-268. Antoninianus (Billon, 20 mm, 4.00 g, 1 h), Mediolanum, 258-259. IMP GALLIENVS AVG Radiate bust of Gallienus to right, with slight drapery over his shoulders. Rev. DIANA FELIX Diana advancing right, drawing arrow from quiver with her right hand and holding bow in her left; at her feet, hunting dog springing right. Cohen -. MIR 920i (2 specimens). RIC -. Extremely rare. Struck from a somewhat worn obverse die and with minor deposits, otherwise, very fine.