Schiermonnikoog, a Dutch Wadden Sea island and municipality in the province of Friesland, where during the Second World War,
due to heavy ice conditions in the Wadden Sea, the German military commander of the island, Kapitänleutnant A. Rehm, due to
heavy ice in the Wadden Sea, issued mimeographed emergency paper money of 1 and 10 guilders, dated 10 January 1941.