How wootz blades were forged?

[ariel]

It so happened that I bought a wootz Pulwar about a year ago. It came ... broken in half. Insurance paid me back, but I'd rather have the sword:-((((

But there was an interesting feature : the break showed internal structure of the blade.
So, I have decided to show how the wootz ingot was transformed into a blade.
I drew a sequence of images. Just do not criticize me for bad artistry: I never had anything more than C- in my elementary school.
From left to right:
1. Ingot in its final form consists of 2 fractions: the bottom part has good wootz with all the dendrites. The upper part collects the junk, the slug etc.
2. The upper part is deeply notched
3. Then the notched ingot is doubled on itself, with the " dirty" part becoming the inner one.
4. The blade has its edge and sides made out of "clean" wootz, and the "dirty" one is open on the spine.

Next, picture of the broken blade: one can see the junky innards on top of the blade.
Next one,- another sword, with a "crack" on the spine. This is where the junky part of the blade shows. Then the smith fills the crack with a wire. Or not.