Triskelion Isle of Man badge symbol 1963 hallmarked 9ct gold charm

A fine quality well detailed smal gold souvenir charm in the form of the ancient symbol a Triskelion (three bent legs), the front impressed with Birmingham 9 carat gold hallmarks for 1963 and maker's details 'CH' without a dot, possibly 'Charles Horner'. Very good condition, complete with suspension ring. Diameter 16mm.