Orbiana, wife of Severus Alexander (222-235). BI Tetradrachm, Alexandria mint, Egypt. Dated year 6 of Severus Alexander (226/227 AD). Obv. ΓN CEIPE CAΛΛ BAP OPBEIANH CE. Draped bust right, wearing stephane. Rev. Eagle standing left, head right, with wreath in beak; in field, L-S. Koln 2499. Dattari 4452. Milne 3008. Emmett 3267. BI. g. 12.41 mm. 25.00 RR. Very rare. Brown patina with reddish spots. About VF/VF.