Just got a funny piece!
This is a prototype for the New Wave wall/ceiling lamp. It was given to a man who worked with the artists at Holmegaard in the 80:ies.
It is a bit larger and rounder compared to the serial produced version wich you see in the last pictures. It has also a sand blown surface. Another difference is that it uses a E27 light bulb instead of E14 as the serial produced lamp does.