Title: On top of the world
Subjects: Aeronautics, Ėkspedit︠s︡ii︠a︡ "Severnyĭ poli︠u︡s" (1937), Flights, Ėkspedit︠s︡ii︠a︡ "Severnyĭ poli︠u︡s" (1937) http://id.loc.gov/authorities/names/n82059001
Places: Soviet Union, Arctic regions, North Pole