Watch List notes:

Gallienus, 253-268. Antoninianus (Billon, 22 mm, 4.01 g, 1 h), Samosata, 256-260. IMP C P LIC GALLIENVS P F AVG Radiate, draped and cuirassed bust of Gallienus to right. Rev. VIRTVS AVGG Gallienus and Valerian I, both laureate and in military dress, standing facing one another; on the left, Gallienus holds a spear and globe, and, on the right, Valerian holds Victory and a transverse spear; above, star. MIR 1703r. RIC 456. RSC 1310a. About extremely fine.