Der Stahlhelm, Bund der Frontsoldaten
Der Stahlhelm, Bund der Frontsoldaten (German: 'The Steel Helmet, League of Front-Line Soldiers'), commonly known as Der Stahlhelm ('The Steel Helmet'), was a revanchist ex-serviceman's association formed in Germany after the First World War. The group claimed inspiration from Italian fascism, and excluded Jewish veterans.
Source: Wikipedia — Der Stahlhelm, Bund der Frontsoldaten (CC BY-SA 4.0)