Emblem of the Russian Soviet Federative Socialist Republic
The emblem of the Russian Soviet Federative Socialist Republic was adopted on 10 July 1918 by the Government of the Soviet Union, and had been modified several times afterwards. It shows wheat as the symbol of agriculture, a rising sun to symbolize the republic's future, the red star as well as the hammer and sickle for the victory of communism and the "world-wide socialist community of states".
Source: Wikipedia — Emblem of the Russian Soviet Federative Socialist Republic (CC BY-SA 4.0)