Kris Cundrik or kris patrem ?

[Alam Shah]

Originally Posted by Michel

I made an error in naming the first weapon a Badik. It is a Tumbuk Lada or pepper crusher, at least in Malaysia. I think is a beauty. The shape, the blade, the sampir, every part is perfectly made without overdoing them..

Correct me if I'm wrong, the blade and sheath looks like a typical Sumatran Sewar (siwah, siwar..etc), but the hilt is unusual. Looks more like a sukul jering hilt form of the Pakpak Batak, Sumatra.
[Examples of sewar], (courtesy of VVV).

Originally Posted by Michel

the next two are Kerambit or Lawi Ayam
Origin unknown but bought in Peninsular Malaysia
...

The 2nd item is a beladau (your 3rd and 4th pictures). Found in Sumatra and the Riau Archipelago (includes Peninsular Malaysia). The 3rd item is as described. One of my favorite weapon. Currently, I only have a 'dummy' to practice with. One day, I wish to have the real stuff.