Egypt, Alexandria. Diocletian. 284-305 AD. BI Tetradrachm 21 mm. 6.1 gm. Dated RY 7 (290/291 AD). Obv: ΔIOKΛHTIANOC CƐB, laureate head right. Rev: Zeus standing left, holding patera and sceptre; eagle at feet, LZ (date) Dattari 5776; Geissen 3250.