Need help to identify a little knife, Greek, Black Sea, Bulgarian?

[Sajen]

Hello Teodor, Geoff and Eftihis,

Thank you very much for comment!

So it's most probably not Bulgarian or Greece but could be from the Black Sea area which was my first guess also!
My hope is that Sfenoid chime in and confirm it.

Thank you again and best regards,
Detlef