This set of vintage cufflinks and a matching tie tac are made of sterling silver (marked) and set with black onyx. They were made by "THEDA" produced by the Ideal Manufacturing Co. of Providence, RI in the 1950's-1960's era. Classic in design they offer a clean, elegant look for cuffs and tie which, quite frankly never goes out of style. The rectangular cufflinks measure 1" X 1/2" and the tie tac is a 5/16" square. Each item is marked "sterling" with the "THEDA" mark on each cufflink, but not on the tie tac. They are in very good, used estate condition with no damage. In their original box which is covered in a watered-silk look fabric in a rich chocolate brown (photos turned out too orange looking, sorry) while both top and bottom rims are gold-toned metal. Ready to wear for either a man or a woman today and tomorrow!