Watch List notes:

Gallienus. AD 253-268. AR Antoninianus (21mm, 3.38 g, 7h). Colonia Agrippinensis (Cologne) mint. 1st emission, AD 257-258. Radiate and cuirassed bust right / Gallienus standing right, holding spear and signum. RIC V 58; MIR 36, 882l; RSC 1309. VF, toned, flan flaw on obverse.