A Khyber 'type' knife with Ivory (?) handle.

[Atlantia]

I love this family of daggers. I think you should call this one a Pesh-Kabz really. Although it does look like its quite possibly Afghan/N.Indian.
I try and avoid Ivory if I can and so am no expert, does the grain separation indicate its likely to be a Walrus tusk rather than Elephant?
Nice piece though, little clean and lemon?
Remember my bowie! Never know what'll turn up!!