This is an  Museum Quality Tiffany Studios Reproduction of the Antique Peony Leaded Glass Lamp Shade. The Summer Peony Lamp Shade with its red pink moteled glass, some being well textured and all great looking. There are 669 pieces of fine leaded glass, primarily Youghiogheny, Uroboros and Bullseye glass with fine leading throughout. The shade is 18 wide at the edge swelling slightly to 19 inches and 8 inches tall with a 3 inch aperture (actual 3 1/2). If you have a base this may be just the Shade for it. Check out the photos!