10 000 000 Mark

Wiesdorf was a small industrial town on the Rhine, best known as the headquarters of Bayer AG, and its municipal emergency money in 1923 sits squarely within the most chaotic phase of German hyperinflation — the period between roughly August and November when denominations climbed from millions to trillions within weeks. A 10,000,000 Mark note would have bought a loaf of bread in August 1923, and almost nothing by October.

M. Dumont Schauberg, the Cologne press behind this note, was one of the most active commercial printers supplying Notgeld to municipalities across the Rhineland during the crisis. Wiesdorf itself was absorbed into the newly created city of Leverkusen in 1930, which is why issues under this municipal name ceased entirely.