Watch List notes:

Gallienus (253-268). BI Antoninianus, Cologne mint, 257-258 AD. Obv. GALLIENVS PF AVG. Radiate and cuirassed bust right . Rev. GERMANICVS MAX V. Two captives seated at foot of trophy. RIC V 18. BI. 4.17 g. 21.50 mm. Sound metal. From masterly engraved dies. Brilliant and lightly toned, with iridescent hues. About EF.