View of Results of the Work carried out by the Aero-photo Survey Expedition of the Central Hydrographical Department of G.U.S.M.P. (Russian Chief Administration of the Northern Sea Route) — 1935 (Extract)

← Results of the Work carried out by the Aero-photo Survey Expedition of the Central Hydrographical Department of G.U.S.M.P. (Russian Chief Administration of the Northern Sea Route) — 1935 (Extract)