Boundary Park Greyhound racing stadium membership badge

A scarce original post- war 'City of Norwich Greyhound Stadium Racing Club lapel badge', silver plated shield shape example with title surround 'NG (N) Ltd Boundary Park', the centre depicting a racing greyhound on green enamel ground; the reverse impressed with official issue number '555'. Good condition, complete with original horseshoe buttonhole lapel fitting, enamel intact, minor manufacturers flaws in the form of pitting, silver plating worn in parts. Height 21mm. 'Boundary Park Stadium' Boundary Road, City of Norwich, opened in 1932 under the promotion of the 'NG (N) Ltd' 'National Greyhounds Norwich Ltd' . Its last meet was in 1962.