Originally Posted by ariel
A bit too many "ifs" for my taste:-)
I have no idea whether the content of inscriptions might help, but no matter what, there are other unquestionably Afghani examples with similar wall-to-wall deeply etched texts along the entire blade. They might be infrequent, but this khyber is not a "unique" example.
The really interesting question would be where were they manufactured: all over the country, of limited to the Persianized ( Shia?) enclaves?