Telek ?

[Jim McDougall]

Thanks very much for that great link Teodor!
In looking back at it I noted the interesting entry in the rather obscure (and with unfortunate and dated title), " Weapons and Implements of Savage Races" (Montague, 1921). (see image below)
Here is an arm dagger attributed to the Kanuri of Bornu, situated to the south of Ajjer regions in Nigeria.
It is not surprising to see these similar forms diffuse into contiguous regions with these nomadic peoples.