Congo sword ID help

[Cathey]

Hi Guys

I did post this seperately but thought I might post it here as well. This short sword is almost identifcal to the one at the beginning of this post.

It is 18 ¼” (46.4 cm) long over all with a 13 ½” (34.4 cm) blade which is 2 ¾” (7 cm) wide at the swollen end. I had thought it might be a Songye, but I couldn’t find anything quite like it in Stones Glossary and African weapons are not my strong point.

The blade is very distinctive and based on this alone having looked at all of the examples on http://www.memoire-africaine.com/armes2.html and http://www.africanarms.com/gallery?9...-sword-49-3-cm, I still have the following list of what it might be:
Songye-Eki-Nsapo / Congo 1900-1920
Sword NGALA-Bangala
BENA-LULUA LUBA DRC
Glaive Tchokwé-Lunda 1900 Angola / Zaire
Songye short sword
Songye prestige sword

I am hoping someone might be able to narrow it down for me.

Regards Cathey