Art Deco 9ct Gold Platinum & Onyx Dress Set

A well presented dress setA suite of gentleman’s jewellery used for formal occasions and usually includes cuff links, shirt studs, and vest values. in its original case. It is 9ct37.5% pure gold (or 375 parts pure gold and 625 parts other metals) white and yellow gold with round onyxOnyx is an opaque black variety of polycrystalline chalcedony quartz.  inserts. It was made circa 1920-1930.