Persian or Sudanese dagger

[Jim McDougall]

Originally Posted by Peter B.

I want to point out that it looks like the center gap and the waves at the edges of the blade were added when the writing was already in place.
Is this in any way related to the assumption made above?
Or would it also be possible that these features were only added to a "normal" dagger afterwards in order to make it more interesting for sale?

That is of course always a possibility, and I see what you mean as some of the characters seem incomplete as if the blade could have been reprofiled. It could be that one of the thuluth blades might have been cut down to provide a Zilfiqar blade.