Watch List notes:

Gallienus. A.D. 253-268. AE antoninianus (19.33 mm, 2.69 g, 2 h). Gallienus Zoo series. Rome mint, A.D. 267/8. GALLIENVS AVG, radiate head of Gallienus right / APOLLINI CONS AVG, centaur walking right, raising right-front hoof and drawing bow / Z. Göbl 735b; RIC 163; RSC 72. aVF/VF.