From Heraldry of the World
|Heraldry of the World|
Civic heraldry of Germany - Deutsche Wappen (Gemeindewappen/Kreiswappen)
The arms were adopted in 1911.
The arms combine the cross of the State of Köln and the eagle of the Counts of Arnsberg. The oldest seal of the town dates from the 15th century and shows St. Peter, the patron saint of Köln, behind a divided shield. The shield shows an eagle in one half and no recognizable image in the other half.