A superb rare, iconic Herbert Terry 1208 lamp, originally designed for use in industry and drawing offices. 
This model is wall mounted and is so very versatile, with a maximum extended reach of 100cm making it perfect to have on a wall near a dining table, desk , beside or over the bed, or over a worktop.
It has been rewired and PAT tested and is ready to use. Also still has the original Bakelite Crabtree bulb holder, incorporating the on off switch, that is still working.