Gallienus AD 253-268. Antoninianus (21-23mm; 3.18g; 2h) Rome, 6th officina, 10th issue. 267-268. GALLIENVS AVG Radiate, cuirassed and draped bust to right, seen from the back. Rev. IOVI CO[N]S AVG Goat walking to right; in exergue, ς. Extremely rare.
C. 345var; MIR 36, 731p6 (2 known); RIC V, I (sole reign) p. 149, 207var; Wolkow 18u6 (R4).
From the Rosen collection 1999.