Egypt, Alexandria. Saloninus, as Caesar 258-260. Tetradrachm (Potin, 24.00, 13.64 g). Dated RY 6 (of Valerian I and Gallienus) = AD 258/9. Π ΛIK KOP OYAΛEPIANOC KAIC CЄB Bareheaded, draped and cuirassed bust right, seen from behind. Rev. Alexandria, standing facing left, wearing turreted cap, chiton and peplos, is holding head of Serapis crowned with kalathos and resting left hand on long sceptre; L Ϛ (date) across field. Dattari-Savio 5352. Geissen 3003. K&G 93.4. Demetrio 3177. Milne 4004. RPC X online 75390. Emmett 3774.4 (R3). Dark brown patina, small edge chips on reverse. Rare. Very Fine. From the Dr. Thomas E. Beniak Collection. Ex Empire Coins, Sale 8, 07.12.1987, lot 760. Ex CNG, E-Auction 556, 21.02.2024, lot 416. The introduction of Saloninus Caesar into Alexandrian coinage was to prepare him to succeed his father Gallienus, after the death of his elder brother Valerian II. Sent by his father to Gaul, he fell victim to the usurper Postumus in Cologne in July 260 AD.