Metropolitan Police Officer EIIR cap badge

A good original post 1953 period 'Metropolitan Police Officer cap badge'; chromium plated die-cast eight pointed star, the top displaced by a Elizabeth II Crown, blue enamel title circlet, the voded centre ,bearing 'EIIR' cypher. Very good condition, complete with original two loop fittings and brass split pin, no enamel loss.Height approx 50mm.