I don't have any enlarger.
I shoot film and only develop it myself. For printing I go to a pro lab.
I have a dear friend that used to be a photo lab owner but many years ago and he had many little things left in his drawers... among which the sixtif, a film carrier, a condenser uzuco and many other that I now try to sell to compensate the economic crisis I live in.
That's why it is also important for me to know what I have in my hands and to be able to describe it well. And that's why I thank you for your help.
I think may be 25 or 30 euro could be a price... I don't know the correct value and people's need for it but I found on the internet the same item at 50 pound sterlins!