Must have been a popular Design during the Beginning of Framback grinding, i guess the Rousselon and the W&B´s come from the same time but im curious who invented the Feaux-Framenack Design, i think it was invented in France (because of a german reference Book of Razor Grinding and Craftsmanship of 1939 where the Framback Design was named "French Razor Style") or maybe in Sweden but i dont have concrete Infos about it.
I like shaving with french Framebacks, especially with those where the Point is wider than the shank because the different widths make shaving especially under the Nose easier.