1 Mark

Wittdün is the main settlement on Amrum, one of the North Frisian Islands, and its municipal notgeld was a product of the broader 1921 small-denomination shortage that drove hundreds of German towns to issue their own emergency paper. Broschek & Co. in Hamburg handled a significant volume of notgeld printing for northern German municipalities during this period, supplying notes that were typically better produced than the wartime cardboard issues of 1918–1920.

Island notgeld from this region tends to survive in higher grades than mainland equivalents — limited local circulation, tourist collectors buying them fresh, and the relative insularity of island economies all contributed.