Badge/button of the Barton Squad. 33.5mm dia. Made of steel, brass and cloth. Reverse plain, mounting with two flat whiskers. Early version of the insignia with the maker's signature - "clover" with the letters BSW - Bruder Schneider Wien. Lit. Tomasz Zawistowski, Polish cap eagles 1900-17, p. 33; Ireneusz Banaszkiewicz, Catalogue of eagles from the collection - volume I, p. 12. Very good condition, original silvering preserved!