Mike, Congratulations, this is an excellent jambiya. I love this form with the silver braided between the rings instead of stitched across the leather. I have seen a handful of these and they are usually very expensive. I passed one up in Dubai at $150 and I still regret it. What was I thinking?
Artzi may be able to say without looking it up, but I'll try to peg it to a bani (family) when I can get to my books later.
The blade looks quite old, which is even rarer as they do not legally allow old blades out of Oman (don't know about Saudi).
And another rare feature is the old belt. All in all, a fantastic find.
-d