The more such items I have, the less confident I am regarding identification by handle shape. We use to attribute the ones with the diagonal cut cross guard and pommel (#1) to Albania and the one with the straight cut (#4) to Kurdistan, but unfortunately ALL variation are found all over the place. The photo below show some of the variations:
1. West Balkan
2. Central Turkey
3, 4. East Turkey
5. Northern Iraq.
However this is far from being an accurate attribution. Handle shapes and blade shapes from all the area are mixed all around.
With regard to the way these daggers were carried, I trust the photo below is better than thousands words (National Geographic 1938).
