Watch List notes:

Gallienus. AD 253-268. AR Antoninianus (20mm, 3.89 g, 6h). Legionary issue. Mediolanum (Milan) mint. 2nd emission, circa AD 260-262. Radiate and cuirassed bust right / LEG I ADI VI P VI F, capricorn right. RIC V 315; MIR 36, 982n; RSC 447. Near VF, toned, obverse flatly struck.