Mecca Shibriya

[ariel]

I have my doubts whether it can be addressed as shibriya. The blade is uniformly bent on both sides.
But in shibriya one side stays almost straight, but the other one suddenly tapers to create a needle pointed tip.

I think you have a classical Janbiya with a somewhat simplified blade ( no central rib).

Check Artzi's site Oriental_Arms: he has an enormous collection of shibriyas.