I watched
Hight Road to China (1983) the other day and was pleasantly surprised to see that the Afghan's were using actual khyber knives. It was a bit hard to screencap so this was the best shot I could get.
I also once bought a Sikin Panjang and a Co Jang in poor state mostly as fixer uppers (I can use a bit of practice). The lady who sold them told me they had been used in a theater production (unfortunately I never got the name) and that is how they got so banged up. They're sharp, original weapons, and the sikin panjang in particular looks to have been smashed into stuff
hard and a lot (it's buckling and bent in multiple places and there is a crack in the blade and some delaminations, and the grip has split), so those actors were dedicated!
Still haven't gotten around to cleaning them and fixing that split grip. If anyone has advice on the repairs (e.g. how to stabilize that blister or what glue works well on horn grips) I am always grateful for your input.