Gallienus. A.D. 253-268. BI antoninianus (23.0 mm, 3.82 g, 11 h). Antioch mint, Struck A.D. 263-264. Scarce type. GALLIENVS AVG, radiate and cuirassed bust right / P M TR P XV P P / VIIC ·, Neptune standing left, foot on prow, holding trident and leaning elbow on knee. Göbl 1638b; RIC 603; RSC 848. aVF, fully silvered.