Electric Musical Industries EMI salesmans promotional badge

A scarce original circa 1950's record company 'Electric and Musical Industries Ltd salesman's promotional lapel badge'; silver plated circular example displaying the very deco 'EMI' trademark logo on black enamel ground; the reverse impressed with maker's details 'Fattorini & Sons Ld Bradford Works Birmingham' (a pattern used between 1945 - 1954). Very good condition, complete with original buttonhole lapel fitting, enamel perfect, an excellent example.Diameter 21mm.