Vintage Marcasite Silver Bow Brooch with Safety Chain

This is a vintage bow-tie shaped brooch crafted in silver-toned metal, heavily encrusted with rose-cut marcasite stones rather than diamonds. The piece features a delicate, flowing openwork design that mimics the draping of fabric. It measures approximately 1.5 to 2 inches in width. A notable archival feature is the attached safety chain with a secondary small pin, designed to prevent the loss of the jewelry should the main clasp fail. The construction likely dates from the late Art Deco through the mid-century period (1930s-1950s), a time when marcasite was highly popular for achieving a metallic, diamond-like luster at an accessible price point. The metal shows a significant dark gray patina consistent with aged sterling silver. The craftsmanship includes bead-setting for the individual stones. There appear to be some missing marcasite stones or recessed settings with heavy oxidation, and the metal shows light surface wear/scuffing. The safety chain links are slightly irregular, suggesting age-related tension. While no maker's marks are visible on the front, such pieces often carry a '925' or 'Sterling' stamp on the reverse pin assembly. The overall quality suggests a mass-produced but well-finished piece of mid-century costume or bridge jewelry.