So you bought it. I posted that one during the auction and no one had any answers. The only clue we had was the hole in the derailleur dropout was most likely for a Campagnolo Sport derailleur, dating the frame to the early 60's. Just an FYI, the only one of those derailleurs on ebay this week was at $90 with a bid.
If you - and the other bidders - had been about $15 less I might have owned that frame.
I liked it, it looks like nice construction, but knowing I would have to repaint a frame with no ID I kept my budget really low. But I think you snagged a good one.
Welcome to BF.
Edit: I couldn't find any French makers in my search of classicrendezvous pics with that rear dropout brazing treatment, and it doesn't look like the Crescents on CR, either. Good luck in your hunt.
Last edited by Ex Pres; 11-19-10 at 03:06 PM.