50 000 000 000 Mark

City-issued emergency money — Stadtnotgeld — proliferated across Germany in 1923 as the Reichsbank's own printing capacity became overwhelmed by hyperinflation. Düsseldorf's municipal authority was among hundreds of local issuers forced to produce their own high-denomination instruments simply to meet payroll and retail needs. By the time fifty-billion-mark notes were necessary, the denomination itself was obsolete within days of issue — often within hours.

Düsseldorf was under French and Belgian occupation at the time, part of the Ruhr occupation that began in January 1923. That political pressure directly accelerated the inflationary spiral this note reflects.