Robertsons pre war Golly blackcurrant fruit advertising badge

A rare original pre-war early issue circa 1931 'Robertson's marmalades and jam blackcurrant fruit Golly promotional badge', the reverse impressed with maker's details 'W.Miller 118 Branston St. B'ham' and 'Regd 768931' a registered, design and patent date of 1931. Very good condition, complete with original coiled pin fittings and hooked catch, no stress marks or damage to the enamel, gilt finish remains bright. An excellent example. Height 34mm.