Nanna Ditzel tabouret?  

I have spotted a couple of fiberglass taburets by Nanna Ditzel OD 5301
One re d and one blue, they are old and have som marks and scrubs on them, but no cracks.
Anyone familiar with theese ones, how to make them shiny again?
Is it just like preparing the boat for summer?
Rubbing down the paint, and polish with carpolish (colorback) in similar color?
Or to take them to the painter for a full paintjob.
I think they are so cool, looks a bit like a dart wader helmet, or something from Spaceballs. 🙂
Here is a picture of the same chair, but this one have a backrest.
http://www.swankysystems.jp/a/11884
I have no idea what to bid for them, anyone?
http://www.swankysystems.jp/a/11884