Stylish 18K black Onyx Necklace Chain, 20th century.
Very stylish 18K black onyx Necklace Chain, 20th century. The intertwining rope link chain interspaced with eight black onyx bar links accented on either side with gold ball, box link clasp, safety catch attached. Stamped 750 with trademark pine tree. Length: 36inches. Item Weight: 34.86 grams.