Watch List notes:

Valerian II. Caesar, AD 256-258. AR Antoninianus (22mm, 3.72 g, 12h). Colonia Agrippinensis (Cologne) mint. 1st emission of Valerian I, AD 257-258. Radiate and draped bust right / Young Jupiter seated facing, head left, raising hand, riding goat right. RIC V 3; MIR 36, 907e; RSC 26. Good VF, toned with some iridescence. Unusually well struck reverse.