Kubur,
The "X" shape handle seems to have gone through a stylistic evolution and has perhaps become a more cultural shape (Hadendawa branch of the Beja and Kassala Region) although it is still serviceable with a two finger grip. See this link and my post #3 regards the pre-1916 date.
http://vikingsword.com/vb/showthread.php?p=158587
Regards,
Ed