Afircan mask?

I just got this African(?) mask.

I am wondering what it might be? Where from? What it might be worth?

There's not much to work with here, but let me get an expert to take a look for you.

Identifying masks of this type really requires the services of an Ethnicities Expert. Native cultures on every Continent all have their own versions of masks and each tribe within it often their own peculiar to their region. To give you an idea as to just how huge the diversity of African masks is, I've provided a link for you:
Search african mask - Live Auctioneers