BUTTERFLY HEART SLAVE BRACELET and chain RING SET Vintage butterflies jewelry. Silver tone heart ring and bracelet. Marked on back of ring 10 G&S ©86 G&S is the mark for Barbara Seidenath and Lydia Gastroph. Much of their jewelry is heavy cast brass, either plain or plated. ... G&S = Barbara Seidenath & Lydia Gastroph They were from Munich ... Until 1986 many piece were Sterling afterwards most brass with a silver plating.Vintage slave bracelet with inlaid turquoise and a silver Ankh symbol (Egyptian symbol known for key of life) the bracelet is adjustable and ring measures 5 1/2. It is brass with silver plating as seen in pic 3 showing some wear. It is marked G&S 88 on bracelet and G&S 86 on ring which stands for Barbara Seidenath and Lydia Gastroph and the year it was made. They are known for making biker jewelry. THESE ARE VERY POPULAR AND HARD TO FIND STERLING SILVER PLATED ADJUSTABLE BRACELET/Ring size 5. This set does not have the connecting chain anymore, but I can add an old chain to connect the set.