★ Apparently the second and by far the best known example ★

Gallienus, 253-268. Antoninianus (Bronze, 22 mm, 3.08 g, 6 h), Rome, 265-266. GALLIENVS AVG Radiate, draped and cuirassed bust of Gallienus to left, seen from behind, holding spear in his right hand and shield decorated with a horseman galloping left with his left. Rev. FORTVNA REDVX Fortuna standing front, head to left, holding rudder set on globe in her right hand and cornucopiae in her left; in field to right, ζ. Cohen -. MIR 586s (1 specimen). RIC -. Extremely rare, apparently the second and by far the best known example. Thin flan crack, otherwise, about extremely fine.

From the E. Mensch & A. Bauer Collection of coins of Gallienus, ex Leu Web Auction 1, 25 June 2017, 1198.