"Cased" is the term used to describe blown glass when two different colors are layered and fused together. In this case clear glass is on the outside and a white milk glass is on the inside. This time consuming technique gives the glass more detail around the pattern and captures the light in a way that a solid color of glass cannot. Matched pair on the solid brass fitters that they we found with, said to be original. Drop as shown: 11 inches. Can be lengthened with a chain or pole hung fitter. Width of shade: 9 inches 100 watt max each. Priced for the pair.