Vintage Green Rhinestone Intertwined Brooch

This is a vintage rhinestone brooch, likely from the Mid-20th Century, possibly 1950s-1960s, given its construction and style. The brooch features a complex, intertwined abstract or floral design, formed by three large, rounded components that appear to loop into each other, creating a substantial visual presence. It is heavily adorned with faceted rhinestones in varying shades of green, primarily a vibrant chartreuse or peridot green, and some lighter, almost clear, iridescent stones that show flashes of yellow and blue, possibly indicating an aurora borealis (AB) coating. The rhinestones are set in what appears to be a silver-tone metal, likely a base metal alloy such as pot metal or rhodium-plated base metal, due to the duller sheen and the visible oxidation/patina in some areas. The stones are prong-set, with individual prongs holding each stone securely, a common and durable setting method for costume jewelry. There are both oval/marquise-shaped stones and round-cut stones integrated throughout the design, adding textural variety. The back of the brooch reveals a typical pin mechanism with a hinged pin and a roll-over safety clasp, indicating it is designed to be worn on clothing. Visible condition issues include some wear to the metalwork, showing slight darkening or oxidation consistent with age, and a few rhinestones appear to have lost some of their brilliance or have minor surface abrasions, though none appear to be missing. The overall craftsmanship suggests mass production typical of costume jewelry of the era, focusing on visual impact rather than precious materials. There are no readily discernible maker's marks or signatures visible on the face or reverse of the brooch in the provided image.