Granted 1929 – 1971
Blazon: Gules a duck naiant argent on water in base azure, on a chief or an antler in fess sable
It seems like the duck (Ente) was used as a canting symbol for the town long before the arms were formally granted; there are records of it dating back to the late seventeenth century, and it was used pretty consistently (albeit in different configurations) through the turn of the twentieth century. I’m assuming the antler is a reference to the arms of Württemberg, though I can’t find that explicitly stated anywhere.