A pair of gold and enamel Royal presentation cufflinks and a pair of nephrite jade cufflinks

A pair of gold and enamel Royal presentation cufflinks and a pair of nephrite jade cufflinks
The first composed of two oval plaques with the initial G, for George V, and M for Queen Mary, within a garter surmounted by the Royal crown, to a black enamel ground with red enamel detail, to chain-link connections; and a pair of nephrite jade cufflinks composed of alternate rectangular and oval panels to chain-link connections (4)