This is a beautiful British 17" 15ct gold chain with a spring ring clasp. There is a 15 ct. gold mark on the spring ring. 15 ct. gold was discontinued in England around 1932, so I can be quite sure it was made prior to 1932. This necklace came from the estate of a British friend's mother, and this uncommon chain can be yours! It's not a fine little link - can hold a good-sized pendant without breaking.