Tiffany Co. 14 karat yellow gold twisted rope chain. In pre-owned but great condition. Measure 30 inches long and 6 mm thick. This can be worn by a man or a woman. It can fit a large pendant. Weighs a nice 39.1 grams or 1.255 Troy Ounce. The necklace is hollow, although chunky, it does feel over bburden. Beautifully done, great shine. It comes with a spring ring clasp marked 14KT. The connector is stamped Tiffany, and 14K. Gold content has been carefully tested by myself and a reputable estate jeweler. Tiffany made 14K Gold jewelry up to 1980s. So I'd date this piece to 1960s- 1980s, likely during Avon ownership.