Denier type au rateau à quatre dents sur flan vierge

Bonifacio's civic coinage was a direct consequence of the city's unusual political status — a Genoese colony perched on the southern tip of Corsica that maintained enough autonomy to strike its own copper issues for local exchange. The rake-type denier, struck on a blank flan without prior preparation, reflects the bare-minimum infrastructure of a small municipal mint operating at the margins of medieval Mediterranean commerce. The "flan vierge" designation signals an unstruck planchet used as-is, a telling detail about production conditions in a garrison town that was under Aragonese siege as recently as 1420.