Watch List notes:

Postumus. Romano-Gallic Emperor, AD 260-269. Æ Double Sestertius (24mm, 8.05 g, 9h). Mint II ("Irregular" mint), engraver 2. 2nd phase, AD 264-266. Radiate, draped, and cuirassed bust right / Galley right. RIC V 143; Mairat 480-1; Bastien 160. Green patina, areas of weak strike, reverse off center. Fine.