Vintage set of 18ct gold plate Cufflinks and Studs set with Onyx

Vintage Set of 18ct Gold Plate Cufflinks and 3 Studs all with polished Jet Black Onyx.  Amazingly brilliant condition with no damage or losses, just the faintest age patina. Dimensions approx.:- Cufflinks facia is elliptical, 1.7cm x 1.2cm; studs 0.7cm diameter. Europe