Attachment 133865
I have a similar Razor, labeled Bourgade 334, its just the same Blanket as used by TI, LeGrelot, Espagnolette and some others, a very common Blade of the French 30s (and later).
I also wondered about the wedge of my Razor as it has also a notch and allows the Blade not much space (the Blade is 7/8"), but i think scales & wedge are original, as i got the Bourgade NOS.