Vintage 1970s Rolled Gold Triple Cobra Chain NecklaceVintage 1970s triple Cobra link chain, this type of chain has triangular links flattened down to look like the skin of a cobra snake. The chains skin hits the light making this necklace sparkle. The necklace is set in rolled gold which is excellent in quality. Rolled gold is a hybrid metal consisting of fine layers of gold that are fused by heat to create one or both sides of a base metal of brass or copper. Usually rolled gold consists of 5% gold.