GF. Old Spring ring on one end, old dog clip on the other. 19.5" total length. KJ with arrow through it(?) maker's mark. Rosy gold fill with little loss to finish except some patina on dog clip (which has a W & BB maker's mark). Probably collaged together (not by me) using all early 20th c. materials, super tasteful, very wearable. Links are just over 1/8" wide.