1 Pfennig - Heddernheime Kupfer Werk

Heddernheimer Kupferwerk, a copper and metals works north of Frankfurt, issued notgeld pfennig pieces during the acute small-change shortages of World War I, when the imperial government's drain on metal stocks left everyday transactions paralyzed. The irony of a copper works striking zinc coinage is not lost — by 1916, even industrial metal suppliers had exhausted their copper allocations to the war effort.