100 Francs - Leopold I Pattern

This 1854 pattern was struck in the year Belgium was quietly debating whether to formalize a high-denomination gold coinage to compete with French 100-franc pieces circulating freely across the border. Leopold I's government never authorized the type for regular production — the denomination was politically awkward at a time when Belgian monetary policy was still largely tethered to the French system that preceded the Latin Monetary Union's formal codification a decade later. Only a handful of specimens are recorded, consistent with a presentation or committee striking rather than any trial for circulation.