Comprising: four studs, four buttons and a pair of cufflinks, each terminal embellished with a pierced stylised flower-head motif accented with millegrain detail, radiating from a central raised collet-set stone, set throughout with old brilliant-cut diamonds, 1920s, retailed by Goldsmiths & Silversmiths Company 112 Regent's Street London. Together with its original fitted case.

Note:
The Goldsmiths & Silversmiths Company was founded in 1880 by William Gibson and John Lawrence Langman, based at 112 Regent's Street in London, it specialised in selling jewellery, clocks, and silverware made both in England and in France...there is even a set of dress studs by Castellani in a Goldsmiths & Silversmiths Company fitted case in the British Museum. The "prize medals" referred to on the lid of the fitted case were presumably issue of their many exhibition appearances, including: the Indian and Colonial Exhibition (London, 1886), Paris (1889), Chicago (1893), California (1894), Paris (1900) and Franco-British Exhibition (London, 1908). In 1952 they were amalgamated with Garrard & Co.