Watch List notes:

Gallienus, 253-268. Antoninianus (Billon, 23mm, 4.45 g 6), Samosata, 255-256. IMP C P LIC GALLIENVS AVG Radiate, draped and cuirassed bust of Gallienus to right. Rev. PIETAS AVGG Valerian and Gallienus standing facing each other, sacrificing over altar. MIR 1676m. RIC 446. Nearly extremely fine.