I saw this cofffe set in a second hand store in early June, but left it behind for some obscure reason. Afterwards I couldn't get it out of my head (of course), and last week when I was back in Valdres, I got them. All six sets :-) They are called Solöga (Sun eye) and are by Rörstrand, Sweden.
Stavangerflint used to have different colours and decors on the same designs - as seen here on their model no. 2557. I don't know the name for the grey cups at the back, but the one in front is called 'Solei' and is designed by Inger Waage.