Watch List notes:

Gallienus, 253-268. Antoninianus (Billon, 21 mm, 2.54 g, 11 h), Mediolanum, 260-261. GALLIENVS AVG Radiate and cuirassed bust of Gallienus to right. Rev. LEG II PART VI P VI F Centaur advancing left, holding globe in his right hand. Cohen 481. MIR 996n. RIC 335. Nicely toned. Struck from worn dies and with a thin flan crack, otherwise, very fine.