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 23” approx
Slope height 13”
Top diameter 11”
The final photo is an example I gave made with this style of frame.
It has a universal fitting for a floor/table or ceiling shade but would need either a shade carrier (8") or spider fitting (not included in the sale)