The cap badge of the First Judaeans 1919-1921  menorah and word קדימה Kadima This is a cap insignia badge commonly attributed to the Jewish Legion (1917-1918) but used also from organisation Betar . The emblem was designed for the Legion but actually approved for wear after the First World War, in 1919, and worn by the subsequent incarnation of the formation, known as the "First Judean Battalion". In any case, the emblem has always been associated with the Legion itself. It is styled like all British cap insignia, with a slider on reverse. Some issues are [British] maker-marked and some are not, and there are two varieties of style: one with a bell-shaped base to the candelabra (like the one pictured), and another with a straighter lined base. The emblem is unique for its completely Jewish (and completely non-British) character, with a 7-armed Menorah (candelabra) and the Hebrew word "Kadima"  Complete rarity.   http://en.wikipedia.org/wiki/Jewish_Legion Also check this https://en.wikipedia.org/wiki/Betar