Old Sterling Silver Art Deco Necklace. Elegant, Art Deco period necklace 1925 In solid silver hallmarked, 800 on the back and not 850 This one is set with a large chalcedony cabochon and a small mother-of-pearl Pendant size, approximately 5.3 cm by 3 cm Length of the necklace approximately 28.5 cm Weight of the necklace approximately 10.4 cm Old patina, very good old condition