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

A single row cultured pearl necklace and a pair of cultured pearl earstuds, the uniform pearl necklace on knotted silk, pearl diameters approximately 7mm, to a polished spherical clasp stamped ‘14k’, together with a pair of cultured pearl earstuds, on post mounts with butterfly fittings, diameter 9mm, necklace length 45cm. £180-220