Watch List notes:

Gallienus. AD 253-268. Antoninianus (22mm, 2.99 g, 9h). Rome mint, 6th officina. 10th issue, AD 267-268. Radiate head right / NEPTVNO CONS AVG, Capricorn swimming right; ς in exergue. RIC V 245; MIR 36, 732b; Wolkow 24a3. Brown patina. Good VF. Very rare.

From the Bellwether Collection, purchased from Munzen & Medaillen AG, 10 May 2001.