It´s a pluss dificult, indeed, I have an "acier fondu" maibe brits but with an "fleur de liz" gigant near the letters, an quite and significative french signal, but in all the french ones dated in those first years of the razors, the simbols are the most important motive to date, lake in brits ones, and in front of the english razors usually has decorated washers, like yours. But the form was probabli comon. Another one I posted the other day has an A crowned, another incognit, it has tonge, but other I posted months ago has two simbols, more dificult to imaginate than the present ones, an half a moon and a sun, masonic?....well I think this primitive blacksmith signs, near to the medieval ones need a study they haven´t, didn´t have?, regards