I suspect that Oliver's answer might be quite short. After all, we cannot expect a 50 page dissertation published on the Forum.
If you are interested in Caucasian and Daghestani history and weapons, get yourself a book by Kirill Rivkin "Arms and armor of the Caucasus" ( it is on Amazon and often appears on e-bay). There you will find everything and more. Another source is a book by Leslie Blanch " The swords of paradise" , which is a history of Russian Caucasian War. It reads like a thriller, you will not be able to put it aside ( I started to read it on Friday and could not fall asleep till late Sunday!)
Also, a new ( and fantastic!) book by Isa and Khamzat Askhabovs ( father and son), "Searching for lost relics", both in Russian and in English. They scoured Europe and the US to find "lost" examples of Caucasian weapons that left Russia after the revolution and are preserved in private collections.
Contact the distributor and order
https://antikvariat.ru/
If you fail there, Michael Shamansky can order one for you ( I am almost sure)
michael@artbooks.com
Good luck and good reading!