Gallienus. Tetradrachm; Gallienus; 253-268 AD, Alexandria, Egypt, Dated RY 14 266/267 AD, Tetradrachm, 10.22g. Dattari-5239, Emmett-3813. Obv: Laureate, cuirassed bust of emperor r. Rx: Radiate and draped bust of Helios r.; palm frond before, L I? (date) across field. Ex CNG VI, lot 340, 1989.This coin is silver and of magnificent artistic quality and condition . EF