Metropolitan Railway 30 years long service medallion badge

A good original circa 1930's 'Metropolitan Railway Service 30 Years lapel badge'; gilded brass circular example, the centre bearing a shield with the 'Metropolitan Railway Coat of Arms' inlaid with vivid red, white, black and green enamelling; the reverse with maker's details "J.R.Gaunt London" and inscribed "C.W.Robinson". Very good condition, retaining original buttonhole fittings, enamel perfect except for a tiny nick to edge at 2 o'clock, minimal service wear to gilt finish.
Diameter 32mm.

Code: 55223