Title: On the top of the world
Subjects: Aeronautics, Ėkspedit︠s︡ii︠a︡ "Severnyĭ poli︠u︡s" (1937), Flights, Russian, Ėkspedit︠s︡sii︠a︡ SSSR na Severnyi poli︠u︡s,1937, Discovery and exploration, Ėkspedit͡ssii͡a SSSR na Severnyi poli͡us,1937
Places: North Pole, Soviet Union, Arctic regions