Watch List notes:

Gallienus. AD 253-268. Antoninianus (19.5mm, 1.83 g, 5h). Rome mint. 6th issue, AD 260-261. GALLIENVS AVG, radiate and cuirassed bust right / P M TR P X COS; IIII P P in exergue, emperor in quadriga to left, holding eagle-tipped sceptre and reins. MIR 36, 340x; RIC V (sole reign) 154; Cunetio –; Normanby –; Chalfont –. VF, minor green deposits.

Bought from David Miller 1996.

This reverse design also alludes to the ceremonial procession marking the beginning of Gallienus's fourth consulship in January AD 261, but the inclusion of TR P X in the legend dates the coin to no earlier than August/September of that year.