Thread: Found a cutthroat knife.

A friend found this from a relative hwo past away.
I know nothing about cutthroat knives because I have only used a shavette before.
I tried to Google it but didn't find anything so now I turn to the pros.
She asked me if I want this to use and I am really interested.
Do you think this is something to use? and what if I want to give her some money for it, is it worth anything?
Should she keep it or do you think that I can send it to a pro to get it to be usable?
Thanks from Stockholm Sweden.