1947 No sig Prefix XX, Xx, xX, xx, X X Intro: 1957 1 рубль (ruble)
Details
Obverse: Front (vertical): Armenian, Azerbaijani, Belarussian, Estonian, Georgian, Kazakh, Kirghiz, Latvian, Lithuanian, Moldavian, Russian, Tajik, Turkmen, Ukrainian, and Uzbek text; olive branch wreath; state emblem of the USSR
Reverse: Back (vertical): Russian text; stylized ears of wheat in fan pattern; hammer and sickle