Southwestern-Style Turquoise and Copper Concho Brooch/Pin

This item is a Southwestern-style brooch or pin, likely a concho, featuring a central oval turquoise stone set in a warm-toned metal, most probably copper due to its reddish-brown hue and visible patina. The overall shape of the piece is a scalloped circle, giving it an organic, undulating edge. The central oval-shaped bezel holding the turquoise stone is framed by a twisted rope-like detail, a common characteristic in Native American and Southwestern jewelry. The turquoise stone itself is a mottled light blue-green with clear visible matrix (dark veining), suggesting natural, untreated turquoise, possibly from a regional mine. The metal exhibits an uneven surface texture with varying degrees of shine and tarnish, indicating an aged piece with a natural patina that has developed over time. There are no clear maker's marks or signatures visible from the provided images. The craftsmanship appears to be handmade or handcrafted, with the metalwork showing slight irregularities commensurate with artisanal production rather than mass manufacturing. The style suggests an estimated age from the mid-20th century to the late 20th century. The piece's unique features include its warm copper tone contrasting with the cool turquoise, and the classic rope-edge detailing. The condition appears to be good vintage, with expected wear and patina for an item of its likely age. No obvious damage such as cracks in the stone or significant dents in the metal are apparent, though a closer inspection would be needed to confirm this.