[ariel]

During the Soviet regime, ownership of weapons was so strongly regulated that it was for all intents and purposes forbidden. Even buying a hunting knife in a specialized store required police check and permission (presumably, one could not slit somebody else's throat with a kitchen knife bought freely). Being caught by the police with a "finka" (a small knife in a style of Finnish puukko) landed one in jail for a couple of years.
Thus, the Caucasians were understandably very leery of preserving their weapons at home and many were destroyed.Anything of artistic and historian value was confiscated to the museums and likely ended up hanging on the walls of local Party poo-bahs.
As to Tatar history, one shoul go to Lithuania, to the Trakai castle: only 20 mi from Vilnius, and an astonishing place of Lithuanian, Tatar and Caraite culture and, yes, weapons. I still remember dozens of old curved swords.....