Obol or Heller

Hagenau held status as a Free Imperial City within the Alsatian Decapolis, the loose confederation of ten towns that collectively negotiated privileges directly with the Habsburg emperors. This tiny silver piece was struck during a period when the city's autonomy was increasingly pressured — the Thirty Years' War would begin just six years after this series ended, and Hagenau would never fully recover its independent character afterward.

The heller denomination had roots in the coinage of Schwäbisch Hall, and its name followed the coin across the German-speaking world long after the original Hall issues ceased to define it.