50 Pfennig Notgeld-Ausstellung

Leipzig hosted a dedicated exhibition celebrating Notgeld as a collectible phenomenon — this piece was issued specifically for that event in 1921, not as emergency currency in any conventional sense. By that point, the Notgeld craze had fully inverted its own origins: what began as a wartime stopgap had become a souvenir industry, with municipalities and commercial exhibitors commissioning notes purely to sell to collectors.

A note issued by an exhibition about notes is about as self-referential as paper money gets. The issuer had no monetary authority whatsoever.