The reason for restricting the circulation of coins exclusively to the territory of Siberia (from the Irtysh to Kamchatka) is also incomprehensible, although it is known that they were widely used in trade with Asian countries.
Okungacacile futhi isizathu kungagcini kwegazi zemali kuphela eSiberia (kusukela Irtysh eKamchatka), nakuba kuyaziwa ukuthi kwezohwebo namazwe ase-Asia, basuke kabanzi.