1 000 000 000 Mark

By mid-1923, German municipal authorities were printing their own emergency currency — Notgeld — because the Reichsbank simply could not keep pace with denominations that inflation rendered obsolete within days of issue. Essen's billion-mark note was not an aberration; it was an administrative necessity. The Ruhr occupation by French and Belgian forces earlier that year had effectively paralyzed the regional economy, and passive resistance — officially encouraged by Berlin — meant wages still had to be paid even as industrial output collapsed.

The watermarked paper distinguishes this from the purely utilitarian scrip many municipalities issued on whatever stock was available. Someone in the procurement chain still cared, briefly, about counterfeiting.