Condition: Fully functional. The lampshade shows signs of wear. Louis Kallf was a Dutch architect and designer. Kallf joined Philips as a product designer in 1925 and remained with the company until his retirement in 1960. He is best known for his contributions to lighting design. 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.