Egypt. Alexandria. Severus Alexander, 222-235. Tetradrachm (Billon, 25.1 mm, 12.35 g). Dated RY 6 (= 226/7). A KAI MA AYΡ CЄΥ ΑΛЄΞΑΝΔΡΟC ЄΥ Laureate, draped and cuirassed bust right, seen from behind. Rev. Eagle standing left, head turned right, holding wreath in beak; L-S (date) across field. Geissen 2438. Dattari-Savio 4410. RPC VI online, 10336 (temporary). Milne 3000. Emmett 3099. Attractive brown dark patina. Nearly Extremely Fine. Ex Spink & Son, London, VII/73. Third and notable Roman-Alexandrian tetradrachm of Alexander Severus in his sixth year of reign (226-227 AD), penultimate in which these extraordinary and unrepeatable issues appeared. The eagle is the primary symbol of imperial authority on reverse.