Vintage 1930s Art Deco Silver Tone Brooch w Rhinestones & Blue Galalith

A curving Deco-era design frames a marbled blue insert with rhinestone trim, capturing the bold abstract lines of 1930s–40s costume jewelry. An unusual piece, this compact brooch brings together early plastics and silver tone pavé in a distinctly geometric flourish. Style/Era: Art Deco to early Retro abstract ribbon/scroll; streamlined geometric; likely circa 1938–1942. Materials: Silver tone pot-metal setting; pavé rhinestones; marbled early casein (Galalith)–type insert with faux stone effect. Condition: Good used / vintage condition. Noticeable scratching on insert under strong light; minor chip on insert; patina (or grime?) on metal; rhinestone darkening. typical age wear. Review all images carefully for condition. Ships from a smoke-free environment. Approx Dimensions: See image with ruler for sizing. Features: Compact lapel size; abstract geometric silhouette; marbled blue-green faux-stone insert; pavé rhinestone trim; rollover safety clasp; unmarked period construction.