Bronze antoninianus, 20mm, 2.55gm, issued AD 267/268 Rome mint.
Obv: GALLIENVS AVG, Radiate head facing right.
Rev: NEPTVNO CONS AVG (S in ex.), Capricorn right.
References: Sear 10293, RIC 245, RSC 670.
Part of Gallienus' "zoo" series.
This coin fits the following collection focus(es): Gallienus' Zoo Series.