http://www.pbase.com/erlikan/inbox
There you can see 3 samples of bronze nomadic Schytian arms from Azerbaijan. 1 long sword and 2 daggers. Belongs to B.C. 1500s. Their hilt forms are too close to Turkish yataghans and karakulaks. Do you agree that these must be the far ancestors of this type? But there is a huge time gap between these bronze arms and the appearance of yataghans in 17th century. Or does anybody know samples of the lost rings in the evolution chain?