I have seen this type and make of bowie in fair condition sell for $600 to $800 without the scabbard.
This knife looks to be in pristine condition.
The price would be doubled plus another $200 to $300 with the scabbard if it is original to the knife.
I am guessing this knife to fetch 1,500 to 2,000 maybe more for the engraving and to the right buyer.
What a beautiful knife........
Thanks for showing it~