20 Pfennig - Zwiesel

Zwiesel, a small glassmaking town in the Bavarian Forest, issued this notgeld piece in 1917 as wartime metal requisitions stripped municipal circulation of viable coinage. Zinc was the fallback material for dozens of German towns that year — copper and nickel had long since been redirected to the war effort under imperial ordinances beginning in 1916.

The Funck reference places this among a documented series of Zwiesel issues, suggesting the city made multiple denominations rather than a single emergency piece.