Frank Lloyd Wright Luxfer Prism Christmas Tree Ornament. Item Weight: 4 ounces. Unit Count: 1.0 Count. Number of Pieces: 1. Item Dimensions: 3.9 x 3.7 x 3.9 inches. Subject Character: Frank Lloyd Wright. Are Batteries Required: No. Licensed by the Frank Lloyd Wright Foundation. Palladium plated with an anti-tarnish coating. Dimensions: Ht: 3.5. Frank Lloyd Wright Luxfer Prism 3D Christmas Ornament Adapted from a glass block that Wright designed for the American Luxfer Prism Company (circa 1893), this gift ornament is crafted with an anti-tarnish palladium coating and comes gift boxed with a design history card. Ht: 3.5 inches W: 3.5 inches.