Rare old version of the iconic "quadro" lamp by jacques adnet, incandescent tubes, black marble and chrome nickel structure, in addition to the 4 tubes that equip this lamp, an additional set of 2 tubes is offered. this version dates from the end of the 1960s. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources 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.