10 Pfennig - Buer in Westfalen

Buer was an independent industrial city in the Westphalian coalfields — not yet absorbed into Gelsenkirchen, which wouldn't happen until the 1928 municipal mergers. This zinc notgeld piece was issued in 1919 when the postwar collapse of the German monetary system left municipalities scrambling to produce their own emergency coinage. Zinc was the material of necessity: copper and nickel had been consumed by the war effort, and whatever remained was tightly controlled by central authorities.

The Funck reference 64.3 indicates this is a specific die variant within the Buer series, distinguishing it from related types catalogued under the same municipal issue.