A masterwork of ambiental art, designed by legendary italian designer toni zuccheri, crafted in the legendary venini ateliers, pure mid century, art deco modernist design, the most elusive "borealis" series. entirely crafted out of mouth blown/hand formed murano glass hourglass shaped elements, emitting a most pleasantly refracted light. note: the "hourglass" technique is considered highest craftsmanship in the glass art world, and very few glass masters possess the necessary skill to execute such pure art, making this item an absolutely unique masterpiece. uses 5 e14 light bulbs\. For a warmer/goldish light, 2700k or less led light bulbs need be used, while for a whiter/colder light, 4000k or higher led light can be used. measurements: height (adjustable) 60cm-90cm (23.5-35.46 inches), diameter-48cm (18.9 inches), in superb condition, all glass in impeccable condition, complete with all original parts, perfectly functional. this piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution, up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.