Dear Herbert,
I posted the same question on a Swiss forum and got just one answer so far (I don't know whether it's because the question is of no interest or the answer straight forward) and it's in line with what I've seen so far.
For German readers:
http://www.waffen.ch/dcforum/DCForumID2/491.html#
I've e-mailed more authoritative people in CH about this but haven't got any answer yet. I'll let you know if and when I get more information.