3 public-domain matches

Airplanes Piloting

Learning to Fly: A Practical Manual for Beginners

Learning to Fly: A Practical Manual for Beginners

Claude Grahame-White, Harry Harper

Cover of Aerial Observation: The Airplane Observer, the Balloon Observer, and the Army Corps Pilot

Aerial Observation: The Airplane Observer, the Balloon Observer, and the Army Corps Pilot

Holworthy Hall

Cover of In Their Own Words

In Their Own Words

Fred Erisman