Sewar

[A. G. Maisey]

Nice Marius.

I doubt that this wood is either kemuning or makassar ebony --- pic of makassar ebony below.

I do not know narra wood, in fact I've never heard of it, but I do not know names of S.E. Asian woods from outside of Jawa and Bali.

It could be sono kembang maybe, but it would need to have been quarter sawn to present that grain pattern.

If it is a root wood, or wood taken from a crotch or trunk burl it should have a high degree of chatoyancy, I cannot judge this from the photo. I doubt that it is from root, burl or crotch because the grain seems too regular. If quarter sawn it will probably have low chatoyancy or none at all, as opposed to the high chatoyancy we see in naturally distorted grain.