Egypt, Alexandria. Salonina, wife of Gallienus, Augusta 254-268. Tetradrachm (Billon, 22.03, 9.74 g). Dated RY 15 (of Gallienus) = AD 267/8. KOPNHΛIA CAΛѠNЄINA CЄB Diademed and draped bust right. Rev. Draped bust of Isis left, hair gathered in curls and chignon at the nape of the neck, and wearing Basileion; before, palm frond; L I Є (date) across fields. Dattari-Savio 10555. Geissen 2987 (reverse same die). Milne 4172. Emmett 3859 (4). Superb patina and style. Extremely Fine. Ex Jean-Pierre Righetti Collection. Ex Münzen und Medaillen Deutschland GmbH., Auction 12, 11.04.2003, lot 662. Very rare coin for the issuing year, with Isis facing left, then also remarkable for the sculptural portrait of Salonina, of great delicacy and elegance, and finally, for the splendid chocolate brown patina.