Watch List notes:

Valerian I. AD 253-260. AR Antoninianus (21mm, 3.25 g, 7h). Mediolanum (Milan) mint. 1st emission, AD 258-260(?). Radiate, draped, and cuirassed bust right / Securitas standing left, holding scepter and resting arm on column. RIC V 256 var. (bust type; Cologne); MIR 36, 919a; RSC 204 var. (same). Toned, minor roughness. Good VF.