Egypt. Alexandria. Severus Alexander, 222-235. Tetradrachm (Billon, 23.0 mm, 11.71 g). Dated RY 7 (= 227/8). [A] KAI M AYP [CEY] AΛEΞANΔPOC [EY] Laureate and cuirassed bust of Severus Alexander right, short bearded, wearing paludamentum with fibula on left shoulder. Rev. Conjoined busts of Nilus, wearing grain ear wreath and with cornucopia, and Euthenia, draped and wearing grain ear wreath; L Z (date) to right. Dattari-Savio 9937. RPC VI, online 10369 (temporary). Emmett 3128. Geissen 2445. Attratcive dark patina with minor porosity. Good Very Fine. Ex CNG 79, September 2008, lot 736 and CNG Auction 477, 23 September 2020, lot 360. Not common tetradrachm of the year 7 of Alexander Severus (227-228 AD) with the combination of the bust of Nilus with that of his wife Euthenia, the divine protector and promoter of Egypt's agricultural fertility, on the reverse.