Thank you for visiting the SoChicFinds store - vintage and antique, costume and fine jewelry. Square brown gemstone cufflinks with chain link closure. Metal: gold plated silver (vermeil). Gemstone: square shaped brown chalcedony. Weight of the chalcedony cufflinks: 7,11 grams. Hallmark: USSR, 1969, Purity of silver 875. Vintage cuff links in excellent condition. Square Brown Chalcedony Chain Link Cufflinks, Gold Plated Sterling Silver Cuff Link, 1960s Vintage 875 Silver Jewelry for Men