Thanks Shahrial and David for your comments,
Shahrial, you are correct about the Batu Lapak.
I will change it in the description.
Maybe it was to early in the morning when I checked the Pamor
David, cost cutting sounds like a probable reason. But several of the ganja iras blades I have seen doesn't look over all as if the owner was out of funds.
I guess that there may be some mystical, symbolic meaning meaning why to do it. Just as you also seem to do.
I hope we will find the answer from some of the other forumites?
On the Pamor, as well as Dapur, descriptions I usually use Tammens.
And sometimes Ensiklopedi Keris.
On the Javanese influence I have used a Javanese Dapur description.
But most of the Keris I have seen with this form has been Minangkabau Keris.
The reason why I suspect it's not "usual" elephant ivory is because it doesn't look like the material in any of my other ivory hilts. And when I checked in some of the reference works I found hilts of partly resembling material described as molar or hippopotamus.
Earlier this year I had one of the senior European collectors visiting me and he also told me that several of my Sumatran hilts that I thought was made from elephant ivory actually were made from other kind of ivory.
Michael