Mid century M G Wheeler Lamp, Sight light Lamp

Fantastic shape to this Sight Light "flying saucer" desk lamp by MG Wheeler Co.
The lamp pivots on the brass arm by 360 degrees around the heavy steel 9 1/2" square base.
The lamp has been rubbed back to the original aluminium, please see close up images as there are a few age related knocks and bumps.
Circular lamp shade measures 33cm in diameter, complete width with arm approx. 56cm, 36cm tall. Re-wired and PAT tested.  I have another lamp but different colour if you'd like a pair.