Gallienus AD 253-268. Antoninianus (20-22mm; 2.84g; 12h) Rome, 6th officina, 10th issue. 267-268. GALLIENVS AVG Radiate bust to right. Rev. NEPTVNO CONS AVG Capricorn swimming to right; in exergue, ς. Very rare.
C. 670; Cunetio 1377 (3 known); Holmes collection 258; MIR 36, 732b (21 known); RIC V, I p. (sole reign) 152, 245; Wolkow 24a6 (R3).
From the stock of F. Sternberg Zurich 1982.