Gallienus, AR antoninianus. Rome. AD 257-258 (joint reign)

IMP GALLIENVS PF AVG GM, radiate, cuirassed bust right.
PAX AVGG, Pax standing left, holding olive branch and transverse sceptre.

T in right field.
Cunetio hoard 627; Chalfont hoard 262; Pedernec (F) hoard 105 (this coin)

Image from the Pedernec hoard.