Gallienus, 253-268. Antoninianus (Silvered bronze, 21 mm, 3.42 g, 6 h), Siscia, 267. GALLIENVS AVG Radiate head of Gallienus to right. Rev. ADVENTVS A[VG] Gallienus on horseback right, raising his right hand in salute; [to right on ground, captive seated right]. Cohen -. MIR 1422i (3 specimens). RIC 551. Very rare. Somewhat smoothed and with a minor flan crack, otherwise, very fine.
From the E. Mensch & A. Bauer Collection of coins of Gallienus, ex Obolos 5, 26 June 2016, 760.