3 Deniers / Quart

Geneva's adoption of the Reformed faith in 1536 — the same year Calvin arrived — transformed the city-republic's civic and monetary identity almost simultaneously. The municipal government assumed full control of coinage as part of a broader assertion of independence from the Prince-Bishops who had previously dominated the city, making issues of this period direct artifacts of that rupture.

Billon coinage of this type circulated heavily in Savoy-adjacent trade, where the denier remained a practical accounting unit long after silver had displaced it elsewhere in Switzerland.