Jewellery, Watches and Objects of Vertu to include the personal archive of Louis Osman, goldsmith and architect

A group of jewellery items, comprising a pair of single stone emerald earstuds, in collet settings, retailed by Birks, a cabochon amethyst set bracelet, the stones in ropetwist mounts, stamped ‘14k’, a uniform cultured pearl necklace, a nephrite bead necklace and a gilt metal pocket watch, by Hamilton Watch Co. £300-400