Antique Cut Crystal Prism for Lamps and  Chandeliers  6 Stands of 3 Rainbow Reflective Octagon Shaped with Two Pointed Sides. . I would say these are Swarovski but there are no markings. They need a detailed cleaning. Some have edge & hole wear. The metal hangers look Art Deco. Most vintage prisms do not catch the sunlight like these producing dancing colors on the walls. Just 1 strand will fill your wall with color. This photo is just a small sample.  I have more available (see quantity) and will refund shipping after printing your label.