A Tiffany Favrile Glass and Bronze Clematis Lamp

From Sotheby's December 1996 auction.

The shade with an allover pattern of Clematis blossoms in opalescent white glass tinged with green and blue, the centers in yellow and green, the leafage in shades of striated green and yellow, reserved against a ground of cornflower blue glass striated with opalescent white and yellow, the base set with a knop mounted with irridescent blue glass cabachon jewels, brown green patina, has finial, shade impressed TIFFANY STUDIOS/NEW YORK1480-17, base impressed TIFFANY STUDIOS NEW YORK/417.
Height 22 1/2", diameter 18"