Here is a nice pair of sterling silver cufflinks that have carved green onyx masks. On back they are hallmarked 925 STERLING. The top measures about 3/4 inch long and 5/8 inch wide. They are about 1 inch front to back. These cufflinks have heavy patina from age but otherwise they are in good condition. Please check my photos to see them for yourself and check out my Ebay store to see other items I'm selling. Thanks for looking!