Vintage Art Deco flat circular flat black glass rings. These are tiny delicate rings and would work well for earring and necklace dangles. They are hand made and vary slightly in diameter, thickness and donut hole size. 80-90 years old glass beads, France, 1920s. Uncirculated condition, very rare and very limited stock. Package of 20 rings. Let us know if you need some of them to be matched.