Hmmm... The experts diverge. There is as Mr Lockley suggested a way of finding out easily, that is to contact the Audax club in the person of the organizer of the event which is most related to the previous owner of this bike. This is public knowledge, eg published on the Flèche Velocio webpage which Mr Aubague is so very closely associated with, I guess it's ok to post here michele(dot)hugon(at)audax-club-parisien(dot)com
I can also help you locate to the only person with the "right" name who shows up in the phone book, and who lives in Paris. This being public knowledge, just paste this url http://www.pagesjaunes.fr/
So now not only do we now know where to look for info about this particular bike, we know how to use the phone directory in France :)
Nick "who need's to be an expert when you have a computer" March, Agen 47, France
ps: don't bother looking for me, I'm ex-directory