Radio Lyons London transmitting station children's club membership badge c.1936 to 1939

A scarce original circa 1930's period 'Radio Lyons children's club membership badge', gilt rectangular inlaind with white enamel and displaying three red lions, the reverse impressed with maker's details 'Roden London'. Very good condition, complete with original pin fittings, no damage to the enamel. Height 27mm.