Royal Air Force pilot's wing gilt and enamel RAF sweetheart brooch

A scarce original wartime circa 1940's period 'Royal Air Force pilot's wing gilt and enamel sweetheart brooch' unmarked but believed to be by 'Thomas Lyster Mott' bearing highly defined large arched feathered wings unique to this maker. Very good clean condition, complete with original pin fittings, enamel perfect, an excellent example.Width approx 54mm.