500 000 Mark

Dortmund's municipal administration issued this note under emergency currency provisions — the Notgeld system that fractured German money supply into thousands of locally authorized instruments during the hyperinflation of 1923. By the time 500,000-Mark denominations were circulating at the municipal level, the Reichsbank's own printing capacity had become inadequate, and regional printers like W. Crüwell absorbed the overflow.

The joint coverage of Stadt- und Landkreise Dortmund und Hörde reflects a practical administrative merger for currency purposes rather than any formal political reorganization. Hörde was not absorbed into Dortmund proper until 1928.