Watch List notes:

Gallienus BI Antoninianus. Rome, AD 265-267. IMP GALLIENVS AVG, radiate head to right / PAX AETERNA AVG, Pax standing to left, holding olive branch and sceptre; Δ in left field. RIC V.1 -, cf. 408 (sole reign); MIR 678q(1). 3.75g, 20mm, 12h.

Mint State.

From a private UK collection.