Robertsons 1980 Golly tennis player advertising badge variant three white gaps

A scarce original circa 1980's 'Robertson's marmalades and Jam Golly tennis player promotional badge', this example with three white gaps at the top of the tennis racket, the reverse impressed with maker's details '©James Robertson & Sons P.M. Ltd'. Very good condition, complete with original pin fittings, safety roller catch in good working order, no damage to the painted enamel finish. Height 30mm.