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

Two 9ct gold Albert chains, the first a uniform curb-link chain with swivel terminals and sliding T-bar, hallmarked, the second a slightly graduated curb-link chain with swivel clasp, hallmarked, suspending a heart-shaped pendant stamped ‘9c’, together with a further double swivel clasp stamped ‘15’, chain lengths 41cm and 54cm. £700-800