Stater with boar

The Osismii occupied the westernmost tip of Armorica — roughly modern Finistère in Brittany — placing them at the geographic edge of the Gaulish world. Their coinage was never part of a centralized monetary authority; these staters circulated within a tribal economy that relied heavily on cross-channel trade with southwestern Britain, and stylistic parallels with certain Durotrigan and Dobunnic issues suggest those contacts were more than casual.

Billon at this weight indicates deliberate debasement from an earlier, purer silver tradition — a pattern common across Armorica in the decades bracketing Caesar's Gallic campaigns, when metal supplies grew unpredictable and tribute demands intensified.