Tiffany Studios Leaded Nautilus Desk Lamp. The beautiful shade forms a large nautilus shell in 13 geometric rows of green striated glass; on a bronze base signed "Tiffany Studios, New York, 28628" with stem branching out to 2 support arms with on-off switch in the center and on a round platform with relief decorated leaf pattern, stands on 4 feet. Good overall condition, original socket, nice dark brown original patina. 13.5" high x 5.5" wide x 8" deep.