Severus Alexander (222-235). BI Tetradrachm, Alexandria mint, Egypt. Obv. Laureate, draped and cuirassed bust right. Rev. L ΠEM ΠTOY (= regnal year 5 = 225/6 AD). Serapis seated left, extending right hand over Kerberos and resting on sceptre. Dattari (Savio) 4660. BMC 1662. BI. g. 13.67 mm. 24.00 R. Rare. Pleasant brown patina. Good VF.