Wow that is really stunning Jonas - A great find too. Here is a list of all the lava/glitter lamps that I have seen with a shade or shade fitting on them.
1. Crestworth Glitterlite Table Lamp Edition 1 with a Shade. Similar in design to their Telstar model but with a shade on the top. Flared base. (just like the one on ebay)
2. Crestworth Glitterlite Table Lamp Edition 2 - Nordic design using Nordic bottles and switches on the base. A very sophisticated design.
3. Crestworth Prototype of Astro Mini with a Shade - Crestworth Prototype of an Astro with a Shade as seen in a Belgium 1968 tradeshow photo. Crestworth Prototype of a Giant Astro lamp with a balloon style bottle and a giant shade.
4. Gemlite lamp with a shade, seen in an old catalogue.
5. Fog's Rectangular Glitter lamp with a shade and also the one above.
I wonder if there are anymore out there ...
peace - 'baby.