50 Pfennig - Lüneburg

Lüneburg's iron notgeld coinage was a direct response to the metal shortages imposed by World War I, when the German imperial government requisitioned copper, nickel, and brass for munitions production, leaving municipalities to improvise with whatever base metals remained available. Iron was the pragmatic substitute — cheap, abundant from domestic sources, and deeply unpopular with the public, who found it prone to rust and difficult to distinguish by touch.

The Funck reference places this piece within a well-documented series of municipal emergency issues, though iron examples frequently survive in worse condition than their zinc counterparts due to corrosion in circulation.