I recently bought an unsual razor. It is, I think what is called a wedge. It is the first one I have seen. I have heard of them but have not seen one until today. The sides are completely flat. There is no curvature at all. No hollow grind at all. It is a seven eithts The only markings on it is R. Hibberd Sheffield. Anyone have any idea how old it might be or if it is worth anything. It is quite rusty but it is not deep rust. There is no handle at all. Thanks for any help. I will post a pic of it later. Mack