Hi my friend,
You are right it's Moroccan and a sbula.
A sbula with botox and extra guard and quillons.
Not very old I'm afraid, but well done.
Please show us the photos of the auction that you mentionned,
I'm sure that it is a Tunisian dagger and notTurkish nor Greek.
For more examples look here
http://www.vikingsword.com/vb/showthread.php?t=20240
But yours is Moroccan.