Hi Peter,
what you have is definitely a quiver from the Borana in South Ethiopia. They are used from the Borana hunter group called "wata". There are also Somali hunter groups coming from the east, who also use this typ of quiver.
Attached the plate 16 from the book "Galla Süd-Äthiopiens" where you will find the results of the Frobenius expedition in the years 1950-56. Also my example of a Borana quiver together with tree arrows.
a Happy New Year to you and all vikingsword members
Wolf
www.spearcollector.com