The PH 4/3 lamp is a timeless design classic by Poul Henningsen, produced by Louis Poulsen since its launch in 1966. Based on the same innovative 3-shade system as the iconic PH5, Henningsen originally developed this design concept in the 1920s in collaboration with Louis Poulsen. 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.