Thank you Neil! Thank you Alex!

That must be it!

Now all that remains is the question of when it was made. My instinct is 1810-1820, but it's such an odd duck of a razor I don't feel very confident.

I also wonder if it is, in fact, not intended to be a razor at all but a surgical cutting tool.

For what it's worth, the scales are horn and it has a lead wedge.