The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
a 10-kopek silver coin, used for change. It began to be issued in Russia in 1701. In the USSR it has been minted since 1924: until 1932 from silver, then from nickel, and since 1961 from a copper-nickel alloy.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.