5 000 000 Mark

Buer was an independent industrial city in the Ruhr coalfield — it would not merge into the newly created city of Gelsenkirchen until 1928. Like hundreds of German municipalities in the summer and autumn of 1923, Buer exercised its emergency authority to issue notgeld when Reichsbank notes could no longer keep pace with hyperinflation. At five million marks, this denomination reflects a specific window in that collapse: by late 1923 a single tram fare in many German cities had surpassed this figure entirely.

The two signatories, Schollier and Jansen, were almost certainly municipal treasury officials rather than elected officers — standard practice for Westphalian city notgeld of this period.