Description – This Authentic and rare 14″ Acorn Tiffany Lamp circa 1910-1920 is made with 100% Tiffany Favrile Studio Art Glass from Tiffany's furnaces. The shade is signed “TIFFANY STUDIOS NEY YORK” and numbered “1420 – 42″ which was Tiffany's way of designating his Special Shades. The oil burning Tobacco Leaf base originally designed before electric light bulbs were in wide use and was electrified by using a Tiffany Oil to electrical Converter Cluster in the Tiffany Studios of New York. The shade is a pristine example without any cracked glass and the Patina on the Base is outstanding. It is a very nice Green Brown with Red accents worked in.