Watch List notes:

Valerian II. Caesar, AD 256-258. AR Antoninianus (20mm, 3.62 g, 12h). Samosata mint. 1st-2nd emissions of Valerian I and Gallienus. Radiate and draped bust right / Aquila between two signa. RIC V 46 (Antioch); MIR 36, 1692b; RSC 24 (Antioch). Near EF, attractively toned. Exceptional silver quality and strike for issue.