220 - Tiffany Art Glass Lamp. Geometric Leaded Glass Shade on Bronze "Mushroom" Base. Shade is Signed Tiffany Studios NY 1426, The Base Signed Tiffany Studios NY 337. Overall Good Condition. Shade Measures 6-1/2 Inches Tall, 15-7/8 Inches Diameter. The Base Measures Approximately 17 Inches Tall. Shipping $154.00 (estimate $10,000-$20,000)