Gallienus AD 253-268. Antoninianus (20-21mm; 2.32g; 2h) Rome, 9th officina, 10th issue. 267-268. GALLIENVS AVG Radiate and cuirassed bust to right. Rev. NEPTVNO CONS AVG Hippocamp to right; below, N.
C. 668; MIR 36, 743u (32 known); RIC V, I (sole reign) p. 152, 245; Wolkow 23i9 (C-).
From the Rosche collection 1994.