Edwardian-style mother-of-pearl shirt studs and chain

This set consists of two shirt studs and a matching vest or watch chain, appearing to be crafted from a gold-toned metal, possibly gold-filled or brass. The studs feature a distinct hexagonal face with a beaded or milled border surrounding a white inlay that is stylistically consistent with mother-of-pearl. At the center of the inlay is a small, pale bead or circular element, resembling a seed pearl or a decorative rivet. One stud is viewed from the top while the other is seen from the side, revealing a spool-like construction with a fixed circular back. The accompanying chain is composed of elongated barrel or tube links with finely milled horizontal texture, joined together by small circular jump rings. The chain terminates in a spring-ring clasp. There are no maker's marks, signatures, or metal purity hallmarks visible in the image, so this identification is based on stylistic features. The set is consistent with men's evening wear accessories from the early 20th century, approximately the Edwardian era. The metal surface shows an aged patina and minor surface wear, with some darkening consistent with oxidation on gold-toned alloys.

Based on my visual examination of the provided image, I have evaluated this set of men's formal accessories. The pieces exhibit stylistic traits consistent with the Edwardian period, approximately 1901-1915. Based on what I can see, the hexagonal studs appear to feature mother-of-pearl inlays with central seed pearl-style accents, while the chain demonstrates the finely milled 'barrel' links popular during that era. I cannot verify the metal content from a photo; as no hallmarks are visible, I am proceeding under the hypothesis that the material is a gold-toned alloy, such as gold-filled metal or brass, rather than solid gold. The value estimate is predicated on this assumption of mid-range materials. The current market for turn-of-the-century men's haberdashery remains steady among collectors of period fashion and vintage enthusiasts. If the metal were later determined through acid testing to be solid 14k gold, the value would increase significantly based on gold weight. Conversely, if the inlays are found to be plastic or synthetic rather than organic mother-of-pearl, the set would be considered a later 'in the style of' reproduction, likely valued under $30.00. To move beyond a working hypothesis, a physical inspection is required to test metal purity, examine the organic structure of the inlays under magnification, and check for obscured maker's marks. This valuation assumes the items are period-correct examples of gold-filled accessories in good vintage condition with an appropriate aged patina.