Vintage Tuxedo Shirt Studs

These are tuxedo shirt studs, essential accessories for formal black-tie attire. Each piece features a polished black center, likely onyx or glass, bezel-set in a silver-tone metal. They utilize a traditional "pipestem" or spring-back bar mechanism, designed to be inserted through the buttonholes of a pleated tuxedo shirt to secure the front closed in place of standard buttons. Their minimalist, circular aesthetic is characteristic of mid-century vintage formalwear from brands like Swank or Pioneer, though the style remains a timeless staple in modern men's fashion.