Nummus - Constantinus I DN CONSTANTINI, VOT XX, Heraclea

The VOT XX inscription records a vow fulfilled — Constantine marking twenty years of rule, a milestone the tetrarchic system had never expected a single emperor to reach alone. By 324, the year this piece was struck at Heraclea, Constantine was weeks away from defeating Licinius at the Battle of Chrysopolis, effectively ending the last collegial division of imperial power. Heraclea, situated on the Propontis, was strategically central to that final campaign and its mint output served troops massing in Thrace.

RIC VII Heraclea 60 is a fairly well-documented issue, but its precise officina letter places it within a mint reorganization Constantine imposed on Heraclea shortly after his eastern victory.