This is a quality wire frame in an unusual pretty scalloped flower bell shape for making a pleated/gathered or tailored soft bodied lampshade.
Base diameter 18” at narrowest point and 19” at the scallops
Slope height 11”
Top diameter 9”
The final photo is an example I have made with this style of frame (in a larger size).
Duplex ring fitting ( for use with a shade carrier which is available to purchase separately).