Vintage Andrew Dewa Zuni Signed Spiral Opal Sterling Silver Earrings

These are sterling silver spiral opal drop earrings, identified as Zuni Native American style and potentially made by the artisan Andrew Dewa. The earrings feature a drop design with a teardrop top section and a twisted spiral or "ribbon" body. The inlay style is characteristic of Zuni work, involving small, precisely cut pieces of stone set in metal channels. They are inlaid with synthetic blue opal (also referred to as fire or lab-grown opal). They bear the hallmark "AD," which stands for Andrew Dewa.