Gallienus 253-268 AD. Billon Antoninianus (22mm, 4.28 g.). Antioch, 266-268 AD. GALLIENVS AVG Radiate and cuirassed bust of Gallienus to right. Rev. CONSERVATOR AVG Aesculapius standing front, head to left, leaning right on serpent-entwined staff. Cohen 140. MIR 1649g. RIC 632. Nearly Extremely Fine.