I finally manage to source one of the computer cases I find somewhat classic.
Do anyone have any information about the vendor, etc.?

I have turned the whole case upside down and cannot find anything,
in my Macase bonanza, I also discovered that these Taiwanese cases were actually pirated!

This one, however seems like it is an original cast based on the mounts on the backside and that the cast has texture (which non of the pirated copies I have seen have).