Gallienus, 253-268. Antoninianus (Billon, 21 mm, 3.69 g, 6 h), Mediolanum, 261. GALLIENVS AVG Radiate head of Gallienus to left. Rev. LEG I MIN VII P VII F Minerva standing front, head to left, holding Victory in her right hand and spear and shield set on ground with her left. Cohen 464. MIR 989c (2 examples recorded). RIC 323. Extremely rare. Minor porosity and with light deposits, otherwise, very fine.