When I was preparing my Foxcroft lecture I noticed that there was no entry on Wikipedia (in English) for the Enfer at the Bibliothèque nationale de France, a quite poor entry (in French), but an excellent one (in German).
And so, as a prelude to creating a list of Private Case collections on Wikipedia, I decided to have a bash at translating the German entry into English. Thanks Google Translate! The new Wikipedia entry is here. If you see any errors, omissions, infelicities etc., please feel free to edit accordingly. And, since it is flagged as an orphan, please add links too!
I hope to expand on it, and the Private Case entry, later on—probably when I am writing up my Foxcroft lecture for publication in the new year.