Egypt. Alexandria. Salonina, 254-268. Tetradrachm (Billon, 23.0 mm, 12.16 g). Dated RY 6 of Gallienus (= 258/9). KOPNHΛIA CAΛONЄINA CЄB Diademed and draped bust right. Rev. Alexandria with chiton and peplos standing frontally, head with wall crown to the left, holding a scepter in the left, bearded bust of Serapis with Kalathos on the outstretched right; L - S (date) across field. Ex Dattari-Savio 10551 (this coin). Milne 4003. Emmett 3745. Very Fine. Rare. Ex Giovanni Dattari Collection 10551. Ex Jen-Pierre Righetti Collection. Ex Münzen & Medaillen 12, 11. 04. 2003, lot 660. This tetradrachm was issued to celebrate the August Salonina, empress consort of Gallienus, with her draped and diademed bust whereas on the reverse is the towered deified Alexandria, in its solemn function of the reign’s capital guardian, with long sceptre, holding with its right hand the bust of Zeus Serapis, with which it was consecrated the Serapeum, the principal temple of the town. Rare coin and of prestigious origin.