African art??

I just picked this piece up today and cannot find any viable information about it. I think it is African wood (very light in weight) and made for export perhaps. I actually purchased two. The other one is slightly different which I will put up also. They both were encased in a glass lidded shadow-type box with woven grass on all sides. Primitively sealed with black duct tape. I found one other precisely the same, but offered little if any good info.. Any light you can shed will be greatly appreciated.
Thanks!
Denise