Denier or Rappen

Colmar's civic coinage in this period existed largely because the city, as a Free Imperial City within the Habsburg sphere, retained the right to strike small silver fractions even as larger monetary consolidation was underway across the Upper Rhine. The Rappen monetary system — shared loosely among Alsatian and Swiss cities — created a patchwork of interchangeable small denominations that facilitated cross-border trade at the market level without requiring centralized mint authority.

At 0.24 g, these pieces were among the lightest silver coins in regular circulation in the region, and surviving examples are almost universally worn thin.