25 Pfennig Ykernborg

Eckernförde's 1921 notgeld issue came at the tail end of the first wave of German municipal emergency money, when hundreds of small towns and cities were still plugging coin shortages with locally printed scrip. Hartung & Co. in Hamburg handled a substantial volume of northern German notgeld during this period, supplying municipalities across Schleswig-Holstein with competent if unremarkable presswork.

The spelling "Ykernborg" is the Low German form of the town's name — its deliberate use on notgeld was common civic practice in the region, a nod to local dialect identity in a province that had only definitively returned to Germany from Danish administration following the 1920 Schleswig plebiscite.