10 000 000 Mark Hugo Stinnes Linien

Hugo Stinnes Linien was a shipping and industrial conglomerate controlled by Hugo Stinnes, the Ruhr magnate who became one of the most powerful figures in Weimar-era Germany precisely because hyperinflation worked in his favor — he had borrowed heavily to acquire assets, and inflation effectively wiped out his debts. The firm issued notgeld denominated at 10 million Mark because, by mid-1923, that sum barely covered a day's wage for harbor workers. Emergency money issued by private companies was legally permitted under the circumstances, and Stinnes moved quickly to supply his own workforce.

The watermarked paper distinguishes this from cheaper emergency issues of the same period, suggesting the firm invested in at least minimal security — not unusual for a company of this scale issuing notes in significant quantities.