Marie Betteley Antique & Vintage Jewelry
The carved black onyx rectangular links with canted corners in 18k yellow gold, with handmade gold link chains attached to tapered gold bar links.
Hallmark for Porto or Lisbon, mid 20th century
The onyx links-10.7 x 9 mm; the chain ½ in (1.2 cm) long
Ref No: GJ039