5 000 000 000 Mark Deutsch-Luxemburgische Bergwerks- und Hütten-AG

Deutsch-Luxemburgische Bergwerks- und Hütten-AG — "Deutsch-Lux" as it was known industrially — was one of the great vertical steel trusts of Wilhelmine and Weimar Germany, controlling mines, coking plants, and ironworks across the Ruhr and formerly Luxembourg. By mid-1923 the hyperinflation had accelerated past any practical ceiling, and large industrial employers were legally empowered to issue their own notgeld to meet payroll. Five billion marks was not an extraordinary denomination for August–November 1923; within weeks it would be nearly worthless regardless.

The Friedrich Wilhelms-Hütte facility at Mülheim was the issuing point, distinguishing this from the firm's other emergency issues tied to different plant locations.