Coat of arms of the former community of Herdwangen (Baden, Germany) which since 1974 is part of the community of Herdwangen-Schönach (Baden-Württemberg). The coat of arms is derived from an extinct branch of the Brümsi family in Überlingen, being bailiff of Herdwangen around the year 1400.
Own work (Original text: own work. The coat of arms is depicted in the Zurich Roll of arms from 1340, strip III, back page 5 (vgl./see http://www.vikinganswerlady.com/ZurichRoll/   - ID# 428))
UnknownUnknown  / vectorized 1st from User:Flow2 / 2nd User:Perhelion