Authors: A. Hildebrandt

  • Airships Past And Present: Together With Chapters On The Use Of Balloons In Connection With Meteorology, Photography And The Carrier Pigeon (1908) — A. Hildebrandt

    Airships Past And Present: Together With Chapters On The Use Of Balloons In Connection With Meteorology, Photography And The Carrier Pigeon (1908) — A. Hildebrandt