Thank you guys for the comments!
Of course I am happy to learn it is much older than I have thought, but even if it wasn't, I would still have liked it for what it is.
And yes, the blade is quite strong, maybe even strong enough to deliver a deadly blow but certainly much stronger than the Shibriyas I found during my trip to Jordan.
And yes, I met even a few Badia policemen but their Shibriyas were no better than those in the Bazaar.
PS: white metal, not silver (maybe with the exception of the thread)