Gallienus, AE Antoninianus, Rome mint. 

Obv: GALLIENVS AVG, radiate head right.
Rev: DIANAE CONS AVG, gazelle walking left.

Officina mark XII in exergue.

RIC 181; RSC 165; Goebl 750b; Sear 10200

With permission of www.cgb.fr, December 2011.