Watch List notes:

Gallienus, 253-268. Antoninianus (Silvered bronze, 22 mm, 2.82 g, 6 h), Rome, 267-268. IMP GALLIENVS AVG Radiate, draped and cuirassed bust of Gallienus to right, seen from behind. Rev. APOLLINI CONS AVG / Δ Griffin walking left. Cohen -. MIR 718aa (6 examples recorded). RIC -. Wolkow 4ua4. A very rare variety with a particularly well struck reverse. Somewhat porous, otherwise, about extremely fine.