A random thought or two -- really all I'm capable of -- early 1800's makes sense looking at it -- 1820 or so? It really doesn't seem to me all that hone-worn, that just looks like the shape it was made, fairly common for that era. The scales? -- it doesn't seem like a razor like that would be originally scaled in wood, but brighter people will likely contradict me, it just seems like a classy razor like that would more likely come in some like of horn or ivory.

Very nice piece, should be a lot of fun for you. No idea about the brand.