The boat badge of HMS 'Sirdar' 1918. The official design, the pattern approved in February 1927. It depicts the Order of British Empire. The badge is a shield shape with a rope twist border representing a destroyer. It is made of cast brass and is unpainted. HMS 'Sirdar' was a destroyer launched by Fairfield in 1918. She was sold in 1934. The next 'Sirdar' was an S-class submarine, built at Scott's and launched in 1943. During the remainder of the war, she was deployed against Japanese shipping in the Pacific. She was broken up in 1965.