The picture is miserably inadequate for identification purposes. My guess is early seventies Gitane Grand Sport or Grand Sport Deluxe, both entry level French bicycles and not worth a great deal of money. That said, prices are going up and up these days.

Gitane bicycles, for some reason, do not fetch premium dollars. Even their top dog, the Professional, sells poorly. But that has just been my experience. Here is a pic of a GSD frame and fork set. Hope this is some kind of help.

GitaneGranSportDeluxe_58_FullSideLeft.jpg GitaneGranSportDeluxe_58_FullSide.jpg