First edition of the "Nesso" lamp by Giancarlo Mattioli of Gruppo Architetti Urbanisti Citta Nuova for Artemide. Stamped on the underside. Wear consistent with age and the lamp's age. 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.