Gallienus (253-268). BI Tetradrachm, Alexandria mint (Egypt), dated RY 13 (265/6). Obv. ΑΥΤ Κ Π ΛΙΚ ΓΑΛΛΙΗΝΟϹ ϹΕΒ. Laureate, draped and cuirassed bust right. Rev. Eirene standing left, holding olive branch and sceptre; to right, palm; L ΙΓ (date) across field. BMC 3299-3300; SNG Cop. 786; RPC X online - (unassigned; ID 75526). 9.45 g. 22.40 mm. Good VF.