This is a really great industrial style vintage lamp.
 
Unusual in style and also in the fact that it folds away if required! So if you need it to be portable. . . It is!
 
It is Czechoslovakian, circa 1950’s and a really fab looking lamp. Something different for the desk. Rewired in a contrasting mustard flex, otherwise as found. 
 
Measurements:
57cm high overall
Shade 21.5cm diameter