Polished Stones Rocks Gold Tone Link Chain and Chain Bracelets Lot of Three

Three vintage, approx 1970s, bracelets. 1. Tigers eye fold over clasp with engraved decorative links. (Photo 8 shows link style) 2. Charm bracelet style with 5 stone charm bracelet style. Spring ring clasp marked 1/20 12K GF (photo 8) link (photo 9) 3. Multi stone fold over clasp. I am not a jeweler and cannot confirm materials. The links and chains are gold tone metal. Good condition. These remind me of the bracelets that were sold in tourists shops in the 1970s.