This is a great looking museum quality Tiffany Studios Reproduction of the Red Black-eyed Susan Leaded Glass Lamp Shade. The shade is 16 inches in diameter and 7 inches tall with a 3 1/2 inch aperture. There are 744 pieces of leaded glass in the shade, primarily Youghiogheny, Uroboros, and Bullseye. The leading is really fine with its very light tan/yellow background of fine textured fractured glass. Check out the photos. If you have the base, this may just be the lamp shade for it!