5 000 000 Mark

Danzig's 1923 hyperinflation issues came fast and often absurd in denomination — five million marks was a practical spending note, not a collector's curiosity, at the height of the crisis. The Free City operated its own monetary system under League of Nations oversight, which meant issuing emergency currency independent of both German Reichsbank policy and Polish authority, a bureaucratic tightrope that produced a remarkably busy series of municipal notes across that single year.

The guilloche underprint was a minimal concession to counterfeiting deterrence at a moment when the presses were running too hard to worry much about security.