Came out of a bedroom in a 1905 farmhouse in Colorado.

Very vintage brass "scissor" or accordion wall lamp. Has a heavy glass shade. Appears to have been rewired a long time ago. Has an on/off switch on the cord and on the light.

Collapses to approximately 7" wide (not counting wall mount or shade). Easily extends out approximately 25". The angle of the light is adjustable as well with the hinge above the light. 

The brass has some discoloration and wear. Take a look at the pictures. 

No idea of the manufacturer. 

Bulb is NOT included.