Hi there Guillaume,
I noticed that moments after I posted my message the base on eBay was sold...so not sure if it was you who bought it.
It appears to be a pretty common base at the time... compatible with many monitors, so, if you didn't buy this one... keep looking.. don't look for specific monitor models, it's better to search for CRT bases on eBay and look at the pictures of them... that's how I did it when I got mine.
Good luck,
D.