www.mcmrdd.org/deneski/gitane/
Spent some time on the Classicrendezvous mailing list where I have learned its a Gitane Super Corsa, which is basicly a TdF with Campy fork ends and Campy parts. The Campy 3-arm crank is not original (needs an NR crank). Check it out.
I have a Gitane catalog and will try to scan the specs page for your TdF if you would like. Post if you want it.