[eftihis]

Hallo, the designs on the blade of this shamshir, look like somebody has put acid on the blade.
When you touch the surface of the blade, you can feel the difference in depth between the lavels of the design, like some points have been eaten by the acid.
Was it a faint wootz pattern, and this was done to give emphasis, is it a visual trick on plain still, or is it just my imagination?
Is this an old technique during its working life or a "new improvement?
Also the sword, althought is sharp, looks like is not expertly made (look at the places that the steel is folded, like was not cared too much for details.)
It is a fairly heavy blade.