Unfortunately the photo that was sent is not very clear. The Ibeji is dark, with
many shaded areas. In order to identify the area of provenance, the Ibeji should
be lighter, with visible carving details. Very often, with this type of photos, I
can't give a precise answer.
In this case, I am anyway able to give an answer the our friend collector.
This Ibeji comes from the area of Erin ( Oyo ) and it is a common type. A similar
type is on the plate number 690 of the Encyclopedia of the Ibeji and it is classified
in the file number 402 of the Catalog of the Ibeji. The scarce quality of the photo
does not allow to give further details on the patina and on the sculpture.