Sestertius - Postumus LAETITIA AVG, Treveri

Postumus seized power in 260 AD after executing Saloninus, the young son of Gallienus, at Cologne — an act that simultaneously announced his rebellion and made reconciliation with the central empire impossible. His administration of the breakaway Gallic Empire was, by most measures, competent: the Rhine frontier held, and he issued coinage at Treveri with a regularity that the Rome mints were struggling to match during the same years of crisis.

RIC V.2 #144 falls within his earliest regal years, before the progressive debasement that would mark later Gallic Empire bronzes.