Watch List notes:

Postumus. Romano-Gallic Emperor, AD 260-269. Denarius (19.5mm, 2.52 g, 7h). Offstrike from aureus dies. Uncertain mint. POSTVMVS PIVS AVG, jugate, laureate busts of Postumus and Hercules right / P M TR P X COS V P P, half-length bust of Victory right, inscribing VO/XX on shield. Sondermann 12.3 (this coin; January AD 269); cf. Schulte (1983) 163 (aureus; same dies; January AD 269); RIC V 334 (AD 268). VF, green patina, some roughness. Extremely rare.

Ex Classical Numismatic Group 60 (22 May 2002), lot 1841 (there described as 'second known specimen').