semi-dual edged badik?

[kai]

And here the picture from the dugong ivory hilt. Carved from a tusk those who can reach a length from 20 until 25 cm. The ivory look similar like elephant ivory but have a concentric structure and by this you can recognize dugong ivory.

Thanks a lot, Detlef!

I'm not completely convinced of the identification though: a concentric structure per se doesn't seem to be enough to narrow down on dugong IMVHO; these can be found in ivory of different origin (including spermwhale and relatives). However, the somewhat angular core as well as the longish inner line may be a better character allowing a positive identification.

Thor, have you some pics of cross-sections from dugong tusks?

Regards,
Kai