Drywall is everywhere today.  Though, the evolution of sheet rock has been massive with its beginnings in the form of plaster and lath - the additon to interior framing of individual narrow sticks (lath) intended to hold the finished wall surface (plaster).  This lamp features both pine and poplar lath found in a 19teens house from Louisville's Historic Cherokee Triangle.
The counter balance is a found salvaged vintage fire brick; the double knob pivot allows for an 89 degree tilt adjustment (+44 and -45).  The light will rotate without limit 360 degrees, has a dimmer on/off switch and is a 3000K Warm White LED: 50,000 hrs life, 12W input, 660 Lumens.
The light is pictured mounted at 9.5'; the pivot is 69" from the floor.  The tilting arm is 4' overall, with 37" extending from the pivot.   The light is 9 lbs, and the vertical portion is 34" - if you need adjustment for your installation, I would be glad to accomodate.
The shipping dimensions are 56.5"L x 12.5"W x 9"H.