This is a large UK made wire frame for making a soft bodied lampshades.
Note that it is an original vintage frame and has been stored a while and there are some scuffs/greying etc so it may need a little respraying with enamel paint to the visible areas.
Base diameter 20”
Slope height 16 1/2”
Top diameter  13”
It has a duplex/universal fitting for a floor/table or ceiling shade but would need either a shade carrier (I suggest at least 8” or spider fitting (available among my other items)