Title: Russko-germanskoe obshchestvo vozdushnykh soobshcheniĭ Deruli︠u︡ft (1921-1937)
Subjects: Deruli︠u︡ft (Firm), Air travel, Airports, Exhibitions, History
Places: Russia (Federation), Kaliningrad (Kaliningradskai︠a︡ oblastʹ), Germany, Prussia, East (Poland and Russia), Soviet Union