Gallienus - Roman Emperor : 253-268 A.D. -  - Joint Rule with Valerian I  253-260 A.D. -
 Silvered Bronze Antoninianus ( oval est. 17mm and 19mm  Siscia mint Sole Reign circa 264-265 A.D.
GALLIENVS AVG, radiate head right
& PAX AVG, Pax  standing left, holding olive branch and scepter. S-I across fields.