Robertsons 1980 Golly milkman advertising badge

A good original circa 1980's 'Robertson's marmalades and Jam Golly milkman promotional badge', the reverse impressed with maker's details '©James Robertson & Sons P.M.Ltd.'. Very good condition, complete with original pin fittings with safety roller catch in good working order, no damage to the painted enamel finish. Height 31mm.