[ https://i.postimg.cc/QFWVzjpp/20190617-121517.jpg [/ https://i.postimg.cc/P5SZPxJF/20190617-121517.jpg ] I have a verry old silver bracelet with what is appears to be goldstone but has no hallmark marks except two zigzag patterns crossing each other and three dots on each side of the zigzags , is ...