Marked (base): Tiffany Studios/ New York/ D800. Shade unsigned. The leaded shade has a domical form with a graduated five-row geometric design at the top and three-row geometric design at the lower rim in striated green glass. The center of the shade has a banded border with a swirling leaf pattern with yellow and white mottled glass, the upper rim of the shade has a bronze beaded edge. The bronze library base has four curled leafy feet with an incised onion pattern on the cushioned platform continuing into twelve ribs running up the length of the stem. The shade sits on three arms branching out under the spherical three-light cluster.