Adi dao?

[blue lander]

Just got this one off e-bay, the seller said it's a Dao from the Adi tribe. There seems to be a ton of diversity in daos from that part of the world, was his assesment correct?

The edge is convex ground on one side and flat on the other. The whole edge is rolled over a little, but it's still quite sharp. There's quite a few fairly deep "dings" in the edge. No sheath.