Watch List notes:

Valerian I. AD 253-260. AR Antoninianus (20mm, 3.70 g, 12h). Samosata mint. 1st emission, AD 255-256. Radiate, draped, and cuirassed bust right / Valerian, holding eagle-tipped scepter, and Gallienus, holding parazonium, standing facing one another, sacrificing over lighted altar between. RIC V 285; MIR 36, 1676e; RSC 152. Near EF.