Hello Emanuel,
the seller says that the dagger is from 1850
"1850 fully documented African dagger , lovely detail on handle and sheaf , and blade is in an uncleaned state as is the rest of the knife , comes with receipt of date of purchase , great condition"
but who knows
for sure the one you post is quite similar.....
Maybe a vintage souvenir but seems well made.... like the Tjikerohoe goloks from indonesia....
Now I'm very very curious to see this "receipt"....
Regards
Flavio