Watch List notes:

Postumus. Romano-Gallic Emperor, A.D. 260-269. BI antoninianus (21.1 mm, 3.58 g, 1 h). Cologne mint, A.D. 265-268. IMP C POSTVMVS P F AVG, radiate, draped and cuirassed bust of Postumus right / DIANAE LV-CI-FERAE, Diana standing facing, head right, quiver over shoulder, holding long, lighted torch with both hands . RIC V 299; ; RSC 33-4. Good VF, several rim nicks, losing nothing, dark green patina with reddish highlights in fields.

From the William Porter Collection.