Designed in-house by Louis Poulsen in Denmark in 1967. It is called Class Room Pendant Light (Da: Klassependel) and it composed of a grey lacquered aluminium main shade with an acrylic diffuser/light distributer to the bottom and top. It is fully labeled with the old sticker from 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.