"Sacha Ketoff " Articulated Lamp Model "Wo" 1985 Publisher Aluminor 
Sacha KETOFF (1949-2014) Franco-Italian artist and designer.
Desk lamp : "W.O." model, Publisher ALUMINOR in 1985, In metal and plastic lampshade.
Very stable lamp: the base (demountable) is weighted and the upper part is doubly articulated
Dimensions: Height: 80 cm max and 55 cm mini.Diameter bases: 18,5 cm.