Pretty glass locket set in rolled gold, c1920. This lovely double-sided locket opens to hold your memento or photo. It tests as thick clear glass, not rock crystal, and the bail ring is marked Rolled Gold, RG. It measures 3/4" and the attached rings add 1/4". The condition is very good, with age commensurate surface wear, but no chips. The hinge opens and closes perfectly. The glass is perfectly clear, see the photo of the locket in my hand.