Gallienus (253-268).     BI Tetradrachm, Alexandria mint. Dated RY 4 (256/7).   Obv.    Α Κ Π ΛΙ ΟΥ ΓΑΛΛΙΗΝΟϹ ΕΥ ΕΥϹ. Laureate, draped and cuirassed bust right.        Rev.   Eagle standing left, head right, holding wreath in beak; L Δ (date) across field.     BMC 2219; SNG Cop. 767; RPC X online - (unassigned; ID 75362).     12.18 g.   22.00 mm.          Good VF.