Chromed wall light by Gae Aulenti for Stilnovo, 1970s design

Trepiù table lamp in silver by Gae Aulenti & Livio Castiglioni for Stilnovo, 1971.
 Good overall condition, but missing the plate that should be fixed to the wall.
 However, it is possible to fix it to the wall with dowels and two screws.
 Measures:
 Diameter 16 cm
 Depth 20 cm