Watch List notes:

Gallienus. 253-268 AD. Antoninianus, 2.28g (2h). Rome, c. 267-8 AD. Obv: [GAL]LIENVS AVG Head radiate right. Rx: NEPTVNO CO[NS AVG] Hippocamp right, rudder below right foreleg, in exergue N (=officina 9). Göbl 743b (96 spec.). Cunetio 1392 (146 spec.). RIC 245. Cohen 667 (3 Fr.). EF