This is a vintage signed Giovanni Balestra 14K yellow gold C-chain necklace that measures 2.65mm by 1.1mm deep, is 18 inches long, and weighs 9.1 grams on a jewelry scale. The bale is marked with the crossbow and the name Balestra on one side, and 585 and Italy on the other side. The spring ring catch is also marked 585, which means 14K gold. The necklace is in excellent condition. Thanks for looking!