Poli︠a︡nin's typescript and manuscript memoirs concern his military experiences in World War I, and the emigration in Bulgaria between the wars. In Bulgaria Poli︠a︡nin worked with the Russkai︠a︡ Akademicheskai︠a︡ Gruppa (Russian Academic Group) and the Obʺedinennye Komitety Soi︠u︡z Gorodov i Zemstv (United Committees of the Union of Cities and Zemstva). Also included are newspaper clippings and a theatre program on silk (Feodosii︠a︡, 1903).