And I don't see how it was twisted. I think it could be done symmetrically with the welded section simply drawn out flat.
From the point at the front of the eye,can you see the line tending diagonally towards the left corner of the blade?With material on either side of it slightly different color/texture?
The welded section was certainly peined and drawn out,and yes,possibly the ends were even in length(my guess is that not quite,that they were random length,but may easily be wrong too).