100 000 000 000 Mark Duderstadt

Duderstadt was a small Lower Saxon market town with no business issuing currency at any scale — yet here it is, printing hundred-billion mark notes in 1923. This is Notgeld at its most extreme, a local government forced into emergency paper production because Reichsbank supply had completely broken down under hyperinflation. G. Hövener was a local printer, not a security press, which means the official seal was doing essentially all the authentication work on a note denominated in figures that would have been incomprehensible twelve months earlier.

The hundred-billion mark denomination places this firmly in the final weeks of the hyperinflationary collapse, before the Rentenmark stabilization of November 1923 effectively rendered the entire series worthless overnight.