You outbid me, you &^t%#$%@!!!!!!!!! 
 
   
   
   
 
This is an Omani kattara, of a very early type, as per Elgood, 17-18th century.
 The pommel was broken off and the owner or some other %&$%#$@%^&$ stuck  the handle of an Omani jambiya onto it. With a screw, no less....
 The blade needs to be cleaned to look for any markings, but I would not be surprised to find it is Persian.
I wanted it so bad! Evidently, you wanted it more...
 Well, having vented some steam (and a lot of it, as you see), congratulations!
 Just do not forget to post the post-cleaning pics  
 
  