Altyn

The name in Tatar is altın (алтын) meaning "gold"[1] and altı (алты) meaning "six", since it was worth 6 dengas, equivalent to three kopeck silver, then copper, a small value coin,[2][3] or 180–206 copper puls.

[5] They were minted from 1654 under Alexis I, under Peter I as silver coins from 1704 to 1718.

Later they were revived under Nicholas I as copper coins with a value of three kopecks from 1839.

While the name altyn eventually got lost, three-kopeck-coins circulated in Russia until 1991.

[5] In the 2010s, the Eurasian Economic Commission drafted first proposals to revive the altyn once again by 2025 as a common currency of the Eurasian Economic Union, although international sanctions against Russia reportedly encouraged the bloc to expedite the process by 3-5 years.