Watch List notes:

Valerian II. Caesar, AD 256-258. AR Antoninianus (23mm, 3.96 g, 11h). Samosata mint. 1st emission, AD 255-256. Radiate, draped, and cuirassed bust right / Valerian standing left, crowning trophy and holding spear and shield set on ground to right. RIC V 49; MIR 36, 1694b; RSC 67a. Near EF, old cabinet toning, slightly granular surfaces.