The first attempt of Werdohl to receive a coat of arms was started in 1915, when they asked Dr. Hildebrandt of the editorial staff of the "Deutscher Herold" in Berlin to create a concept for a coat of arms. The draft already resembled the later coat of arms, only the rose was in silver on black ground. However the war and then the end of monarchy in Germany delayed for several years. In 1929 Otto Hupp created two drafts of the coat of arms, one of which was then accepted by the municipality council on August 29, 1929. It later turned out that the coat of arms need to be officially granted, which happened on January 16, 1935.