50 Pfennig

Sonderburg — now Sønderborg — was transferred from Germany to Denmark in June 1920 following the Schleswig plebiscite, and this note sits squarely in that administrative no-man's-land. The city issued emergency Kleingeld during the transition period precisely because the currency question was unsettled: German marks were still in circulation but Danish krone were coming, and small change had effectively evaporated from commerce.

Notgeld issued by municipalities that changed hands at the plebiscite are a distinct collecting category. Sonderburg examples are among the more historically loaded, the city name itself suspended between two spellings depending on which side of the vote you were on.