Tiffany Studios 16" Dogwood Table Lamp w/ Mottled Favrile Glass. 16" Shade features yellow and purple tinged flowers and dark green leaves on a mottled green background with mottled green brick border, Signed Tiffany Studios New York 554. Library base signed Tiffany Studios D800. Condition: Very good, 2 cracked bricks, 1 small corner crack in a leaf, heat cap has some shallow denting. Base has excellent color and patina. Estimated Value $30,000-40,000.