Is this a siraui?

[Sajen]

Originally Posted by kai

A pic would be great, Detlef!

This is very unlikely to be a natural defect/malformation: The end of the hollow portion of a horn is a fairly acute and rounded "cone" - here we're looking at the endgrain and such a shallow depression does not make any sense unless there was something inlaid. OTOH, the shape does not seem to be perfectly regular and the whole piece is a rather plain ensemble without extant decorative elements...

Hi Kai,

here you go.
Like said, at least by my kalasan handle I feel very confident that the hole is natural. When you look close you see the natural grain around the hole which is in the middle, I think to see the same by Ian's handle. Buffalo horn is hollow in the most of it's length and only at the end massive. I think it's a inadvertent accident from the carver. The hole in the handle from Ian's knive look very similar to my eyes. And the knife isn't fancy at all so I doubt that the hole is extra carved for a jimat.
Just my thought which is worth like any other thought since we just don't know if the hole was carved with aim.

Best regards,
Detlef