Is this really balsa? I already had several balsa blades, but the structure of these balsa-veneers looked different to this. For me it could also be a kind of kiri (paulownia) or similar veneer.
Here you can compare it with the kiri-core of a ZJ Super ZLC
Of course I am not 100% sure, because I am no wood-specialist. Balsa may also be possible.
If you want to know, which kind of outer veneer it is, you should upload another picture with a better look on the veneer. From the first look it good be ayous.
This blade seems to have an interesting composition: 7-ply, with a soft core, soft outer, 2 harder middle-plies with another soft veneer between them. I think, this must be a hand made blade.
Edited by Magic_M - 03/01/2017 at 2:04am