Title: The sickle under the hammer
Subjects: History, Parti︠a︡ sot︠s︡ialistov-revoli︠u︡t︠s︡ionerov, Partīi︠a︡ sot︠s︡īalistov-revoli︠u︡t︠s︡īonerov
Places: Soviet Union
Time periods: Revolution, 1917-1921