Anyone knows what this is ... please ?

[Kmaddock]

Hi Fernando,
The shagreen scabbard looks like that found on Trousse eating sets from SEA
Trousse knives also have the scabbard covering a lot of the handle as with your example.
The knife fits in with size and shape for eating so perhaps this is what it is?

V nice and great to have the scabbard.

Regrads,

Ken