100 000 000 000 Mark

Eschweiler and Stolberg were neighboring industrial towns in the Aachen district, and their joint issue of this denomination reflects how thoroughly the Reichsbank's distribution network had collapsed by late 1923. Municipal and commercial bodies across the Rhineland were printing their own emergency currency — Notgeld — not as a novelty but out of genuine necessity, with payroll obligations arriving faster than official notes could be sourced or transported.

One hundred billion marks. The figure itself locates this precisely within the hyperinflationary peak of October–November 1923, when denominations of this magnitude had a useful life measured in days before becoming worth less than the paper they were printed on.