A friend of mine has this old french frame, reynolds 531, simplex dropout. It had full dura ace 1st generation group (1973), except a suntour rear derailleur. Nothing is written down under the bottom bracket. Any idea of the maker ?
http://eggrz7.free.fr/
http://eggrz7.free.fr/
http://eggrz7.free.fr/
http://eggrz7.free.fr/