I just picked up this brass lamp a few days ago, and I'm curious if anyone has seen it or might know some information about it.
It's a pretty simple design - big brass "plate" at the bottom with a post coming out of it, and the shade sits on an angled bar at the top with two brass balls.
The shade has three holes that I think the rod goes through which sets it at a different angle - does that seem correct? It was not "set up" when I bought it.
The shade is just paper, held together with a snap at the back. It's quite dusty with some creases, so I'm also wondering how to best go about cleaning the shade without damaging it.
I think it's Italian because the plug says made in Italy, also the little snap that keeps the shade closed is made by an italian manufacturer.
I've attached some photos - if anyone might have some helpful information about the lamp or any experience cleaning paper shades it would be greatly appreciated.
Thanks!
Edited to try and make the photos a bit smaller 
the lamp in the picture
The lamp in the photo is based on a design which Man Ray submitted to Dino Gavina in 1973. It was called "la lune sous le chapeau". The lamp was put into production by a lamp and lighting company formed by Gavina called Sirrah. The production model was simpler and less expensive than your lamp. The structure was of steel electrostatically painted glossy grey and the shade was white paper which rested on a circle of wire. I bought one of these lamps from Sirrah during th 1980's and in the course of the years, I have changed the shade a couple of times by using the old shade as a template to cut out a new one. As with most of the works of May Ray, this design was a provocation. The idea was to use an ultra-cheap material such as white cardboard as a material for a lampshade. In other words when the shade gets old and dirty, you throw it out and make a new one. Your lamp is another version of that lamp that is more expensive and I think I remember seeing one in a Gavina showroom during the 1970's. Although the metal finish and the stylistic detailing definitely remind me of other objects produced by Gavina, I find the back colored shade very strange, if not absurd. I suspect that it may be a relacement. Nevertheless, the shade of your lamp is more complicated and probably should remain as it is. I have no idea how to clean the shade but if it gets unsightly and breaks, I would not be afaid to replace it with a copy.
If you need any help, please contact us at – info@designaddict.com