Watch List notes:

Gallienus AR Antoninianus. Mediolanum, AD 253-260. GALLIENVS AVG, radiate and cuirassed bust to left, holding spear and shield / LEG XXX VLP VI P VI F, Neptune standing to right, holding trident and dolphin. RIC V.1 368 (joint reign) var. (bust type); RSC 553 (same); cf. MIR 1024 (no examples listed with this bust type); apparently unpublished in the standard references. 2.83g, 21mm, 6h.

Very Fine. Extremely Rare, apparently unpublished with this bust type.

From the collection of Z.P., Austria.