Watch List notes:

Valerian I, with Gallienus. AD 253-260. Æ Medallion (23mm, 7.37 g, 7h). Rome mint. Struck AD 253-260. CONCORDIA AVGVSTORVM, laureate and draped bust of Gallienus to right, facing laureate and draped bust of Valerian I to left / ADVENTVS [AVGG], Valerian and Gallienus on horseback to left, raising right hands, preceded by Victory and followed by a soldier holding a standard. MIR 36, 328d; RIC V 4 (listed as a dupondius); Gnecchi Plate 154, 9. Near VF, brown patina, some smoothing and tooling.

Ex Numismatica Ars Classica G (10 April 1997), lot 1852.