Watch List notes:

Gallienus. A.D. 253-268. AE antoninianus (19.36 mm, 3.19 g, 11 h). Rome mint, struck A.D. 267-268. GALLIENVS AVG, radiate bust right / DIANAE CONS AVG, X in exergue, stag walking left. Göbl 744b; RIC 179. VF.