A custom version specified by a client. 
They needed the lamp to be a certain height and width. The spiral had to turn to the right. Finish: aged gold leaf.
They needed the  shade to be a warm specific orange. We found them a beautiful chantung silk. Gold lined. 

As it was a high end setting we fitted the lamp with double lamp socket cluster. Silk cord.

Base + shade 70cm H
Size of shade : 32.5cm/ 22.5/25h

We can make a perfect symmetrical pair, where one will have the spiral going left, the other going right. See added pic.