Once Upon a Time in War is a photographic retrospect of the Great War, World War II, Korean War, Vietnam and the War on Terror.
I'm Lux, a twenty-something uni student studying modern warfare to become a museum archivist. I spend too much time playing World at War, and I have a dog named Loki von Bismarck.
Giant listening horns like this were used to listen for approaching aircraft during the Great War once aircraft were used for more than just recon and became weapons.
No claim is laid to these photographs unless they are apart of my personal collection. All photographs are used under Creative Commons licensing and are apart of the public domain.