Interesting fact: The word “customs” comes from the Turkic word “tamga”, which had several meanings: “brand”, “brand”, “document with Khan's seal”, the main meaning - “seal”. The nomadic peoples of Central Asia have the word "stigma", which denoted ownership of a particular item. In Russia, in the old days, tamga was called the trade duty.
Tamga from the Turkic tribes was placed on livestock and objects that were valuable. Moreover, the identity could be designated as for the individual owner, and the clan / tribe as a whole.