20 000 000 Mark Kreis Mayen

Kreis Mayen, a rural district in the Rhineland, issued this 20,000,000 Mark note at the height of Germany's hyperinflation spiral in 1923 — a period when district and municipal authorities across the country were printing emergency currency (Notgeld) simply to meet payroll and local commercial demands. The denomination itself tells the story: what would have been an absurd figure two years earlier had become routine by mid-1923.

At 147 × 76 mm, the format is typical for late-inflation Notgeld — utilitarian in size, generally unambitious in design compared to the decorative small-denomination issues of 1920–21.