Getting back to the 'Khyber knife' .....
Ham,
Outstanding concise data on these interesting weapons, not at all exhausting!!

just precisely described.
I am extremely interested in the distinct lazy s type motif in lines near the top of the blade.....it seems I have seen this motif as far to the east as Laos and on some types of dha. Similar markings occur in a number of diverse regions on swords, and typically in this type of linear motif, although cannot recall ever seeing it on the 'Khybers'.
Any idea of possible meanings, associations etc. ?
All the best,
Jim