A French early 20th-century lattice work pendant and seed-pearl necklace

A French early 20th-century lattice work pendant and seed-pearl necklace, the open work honeycomb design pendant centred with a foliate cluster of diamonds and millegrain-set with a scrolling border of rose-cut diamonds. A choice of three interchangeable guilloche enamel discs in green, pink and blue. The enamel discs marked 'Prob Pat' and maker's mark 'T. & S' for Turner & Simpson. With a seed pearl and fine platinum link necklace. The pendant 3cm diameter, the necklace 52cm long.