Green stone beaded and engraved pendant necklace vintage?

This looks vintage, but I can't confirm as it came from an estate. The pendant is framed with gold tone metal. Hook closure. A couple of metal links have a bit of corrosion that looks like it can be cleaned off. See last photo. Approx. 15" long. 2.4 oz. smoke-free one dog home Make a bundle or an offer and save! I'm happy to answer questions and ship asap! SZ366JY2