A cased set of Art Deco diamond and black enamel gold dress cufflinks and studs by Cartier

A cased set of Art Deco diamond and black enamel gold dress cufflinks and studs by Cartier, of circular form and each plaque millegrain-set with nine rose-cut diamonds in a square, gold mounts, every link signed Cartier Paris, some signatures and inventory numbers indistinct, the cufflinks 1.3cm wide, lift out inner section of the box reveal backing for the four larger studs, green leather fitted case by Cartier