The two polychrome wall lamps shown here were made using the complex incalmo technique, a technique used to heat-bond two or more pieces of blown glass, often of different colors, creating a single object with clearly defined, colored shapes. The support and lamp holder are made of black painted steel, and the halogen bulb reflects light onto the polychrome glass, creating bright shades of color on adjacent surfaces. These wall lamps were produced in Murano in 1975 for the ITRE (i 3) brand, which collaborated with Aureliano Toso, a renowned designer in the sector (Murano, 1884-1979), for this collection. Toso created this series of lamps, characterized by strong quality, lighting technology, and style. I Tre helped write the history of glass lighting. The balance between form and function determined the success of this brand, which designed and offered highly stylish lighting solutions that could be tastefully integrated into different spaces. The collection's essential yet refined lines still furnish spaces with striking, timeless expressive symbolism. with its clean, crisp character, the collection embodies a refined and versatile style that lends itself well to creating evocative settings within purely domestic settings as well as high-end creations for a variety of uses. Excellent condition. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution, European Plug (up to 250V).The wiring of this item may be original and might need replacement, if not specified otherwise.