African dagger or short sword

[Cathey]

Hi Guys

I picked this up at a local auction but no idea what it is. Any thoughts?

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.