Another kayan mandau

[David]

So what about this blade makes it "old style"?
I am also a bit curious about material choices for mandau hilts. It seems that most of the time antler or bone is the choice material, but we do see wood ones like this occasionally that are obviously nicely carved and not a cheep tourist item. Is there some reason the maker would choose wood over antler when antler seems to be the status quo?