5 000 000 000 000 Mark Reichsbanknote

By November 1923, the German hyperinflationary spiral had reached a point where the Reichsbank could no longer print denominations fast enough to match purchasing power collapse. The five-trillion Mark note — P#136b — was among the final issues before the Rentenmark stabilization of November 15th ended the old currency entirely. Notes of this magnitude circulated for days, sometimes hours, before becoming effectively worthless against the next round of price revisions.

The "b" suffix distinguishes a specific signature combination variant within the series. Paper quality across the late 1923 issues varies considerably, a direct consequence of the Reich's printing contractors working under severe material shortages.