Item: Vintage Art Deco brass bar brooch pin featuring an openwork geometric frame and a central marbled cabochon.

Design: Elongated diamond-shaped plaque with cutout ends, Greek key style border, and layered beaded and linear detailing flanking a domed oval yellow and cream swirl cabochon.

Color/Material: Antiqued gold tone brass base metal with marbled yellow faux stone cabochon; exact stone and metal content are unknown.

Closure: Long horizontal hinged pin back with C-style clasp for secure attachment to garments or accessories.

Markings: No visible maker's marks or signatures on the back or edges of the brooch.

Style/Theme: Vintage Art Deco geometric statement brooch suitable for coats, jackets, dresses, hats, or display in a costume jewelry collection.