Robertsons 1980 Golly postman advertising badge all RED pocket

A good original circa 1980's 'Robertson's Golly GPO postman marmalades and Jam promotional badge', this example with standard red pocket, the reverse impressed with maker's details '©James Robertson & Sons Ltd'. Very good condition, complete with original pin fittings, safety roller catch in good working order, no damage to the painted acrylic enamel finish. Height 32mm.