Andre Smit's original name for the above semps is Zilver.
What I have done is to give the entry the original (correct) name, then add 'Also sold as' to the entry, so it can be found under either name.
I believe all of them should have the original/correct name and the translated name.
I think what has to be done when looking at names on European sites would be to see the name in that language. That would be the correct and original name.
Some of Andre's semps do have the original name of Silver, without it being translated.
You can see this on both Peter's site and Horst's site when looking at the German version.
