Hello and thank you everybody for your comments,
It's not easy to age and fix a kindjal origin especially without clear stamps-marks...,
( except the two arabic letters ?? has anybody an idea ?
... )
Always interesting to see the mix of cultural influences,
The reverse of the scabbard make me too think it's a caucasian
( georgian ? ) model.
I don't think it's rhino horn,
nice light brown horn with reflects and fibrous structure but no translucence at all...
I put other pictures of the hilt, who knows
!...