10 Pfennig - Karlstadt

Karlstadt's 1917 iron notgeld emerged from the same wartime metal shortage that stripped German municipalities of their copper and nickel coinage — both metals requisitioned for shell casings and military hardware. Municipal authorities across Bavaria scrambled to fill the void with locally issued emergency pieces, iron being one of the few base metals still available to civilian administrations by mid-war.

The Funck reference places this among a documented series, though iron notgeld of this period survives unevenly — many corroded beyond attribution before collectors took serious interest in the type.