Thought about that as at first I thought the center hole white stripes resembled what you see at the core of an Old Chevron- more or less. Upon close inspection I do not see the actual "zig-zag" you might expect and sometime do see in the African Re-worked beads.
I do have some of those, so know exactly what you are referring to. On the ones I have you can see hints and pieces of the actual (7 layer) Chevron design without much doubt. Of course, the Africans re-worked more than Chevrons... but the stripes reminded me of an old worn Chevron at first.
But I think you are right- it would be in the realm of possibilities, but I'm leaning more towards the Mali "Dug" origin.
Hey, Thanks!