ruble
name of currency of Russia, Soviet Union, and several other countries
copper ruble
large copper coin used in Russia during the 18th century
gold rouble
Russian monetary unit (1897-1914)
Silver rouble
currency unit and coin of Russian Empire
Russian ruble
currency of the Russian Federation
Soviet ruble
currency of the Union of Soviet Socialist Republics; briefly used by post-Soviet states after the dissolution of the Soviet Union
Don ruble
banknotes of Rostov-on-Don office of the State Bank, which were issued 1918–1920
Armenian rouble
independent currency of the First Republic of Armenia and the Armenian Soviet Socialist Republic between 1919 and 1923