An antique, blown glass lamp shade of conical shape with threaded bronze mount. Perhaps an insert to a bronze light fixture. It is signed for Tiffany Studios but the conical shape is unusual, although the iridescent blue glass was used by Tiffany.
Possibly Tiffany Studios (New York, NY, 1878-1933)
Signed: L.C. Tiffany Favrile but may not be Tiffany.
Width 3.25 Depth 3.25 Height 4.5 in.