Blazon: Sable a bend wavy between in chief three escutcheons in pile argent, charged with 1 three antlers fesswise in pale, 2 two quarters, and 3 an eagle displayed of the field; in base a fountain of the second
The bend wavy represents the river Steinlach, while the fountain represents the local sulfur springs. The tinctures, as well as the second of the escutcheons in the dexter chief, refer to the house of Hohenzollern, which ruled the city until the early 15th century, when it was mortgaged to the house of Württemberg. The two houses continued fighting over the territory until 1441, when Württemberg finally won out. (Their arms are displayed on the first escutcheon in the dexter chief.) The final escutcheon shows the arms of Fürstenberg, and the arrangement of the three escutcheons represents the nearby mountain Dreifürstenstein, which borders the three territories of Hohenzollern, Württemberg, and Fürstenberg. There are also some representations of the arms that only show three escutcheons, without the details depicted here, which, though incomplete, would have been considerably easier to blazon.