Beautiful specimen of Satin Spar mounted as lamp.
Wired with single E27 socket + harp system.
External wired pulled along the back. 
Shown with cream satin shade. ( 40/37.5/21cm h) 

Base + shade 72cm h

Because of the slight curve in the specimen, the shade sits just slight off center compared to the plinth. 
We chose this as an off center from top of specimen looked weird.