This vintage sterling silver tie clip is marked Siam Sterling in block letters and features the classic Niello dancer on a red enamel background. It measures 1 7/8 inches by 5/8 inches. I very closely inspected the enamel surface and did not see any wear, just imperfections from the original pouring process. I did not polish the tie clip. Weight is 6.2 grams. Circa 1950s or earlier.