I have owned this vintage lamp shade many years, originally it was part of a set which included 2 larger shades of same style. This shade measures appx. 4 1/4" tall & 3" diameter at top & about 4 1/2" diam at the bottom. The shade is very old & appears to be perfectly round. However there is a bend in the frame & at one part it is more oval. Difficult to notice but I mention it just the same. Rarely have I seen this style this small. A great addition to that special lamp.