Hello,
I was watching this one too. A nice Touareg dagger. Have a look at this thread
http://vikingsword.com/vb/showthread.php?t=3758
and this one from the old forum
http://www.vikingsword.com/ubb/Forum1/HTML/000106.html
It seems that these daggers may have started showing up around WWII, western Africa. Hausa, Touareg, lines are blurry...
Regards,
Emanuel