Vintage Mixed Geometric Link Necklace with Silk Thread Wrap detailing

This is a vintage-style opera or flapper-length necklace featuring a series of mixed geometric links, including rectangular, oval, and circular shapes. Each primary metal link is painstakingly wrapped with fine olive-green or bronze-toned silk thread, creating a ribbed, textile texture that contrasts with the hard metal elements. Between these larger geometric focal points are interspersed round, open-work filigree metal beads and smaller metallic spacer beads, all strung on a dark, patinated chain. The craftsmanship suggests a mid-to-late 20th-century costume jewelry piece, likely from the 1970s or 1980s, reflecting a boho-chic or artisanal aesthetic. The metal appears to be a base metal with an antiqued brass or bronze finish. Condition-wise, the piece shows minor signs of age-related wear; there is slight fraying visible on the silk threading of some rectangular links and a general darkening of the metal patina. No obvious maker's marks are visible in the provided image. The overall construction is moderately high for costume jewelry, utilizing varied textures and shapes to create a sophisticated, layered look.