Brothers Sydney and Richard Carline were employed as official war artists by the Imperial War Museum during the First World War, each tasked with documenting aerial warfare.
Between 1918 and 1920, the brothers produced dozens of artworks recording views over the Western Front, the Italian Front and the Middle East.
Here is a small selection of some of their incredible artwork.
Lens, France

An Impression of Lens, France, Seen from an Aeroplane, 1918, by Richard Carline.
The Asiago Plateau, Italy

British Scouts leaving their Aerodrome on Patrol, over the Asiago Plateau, Italy, 1918, by Sydney Carline.
Lebanon

Mount Hermon and Mount Sannin above the Clouds, 1920, by Richard Carline.
The River Euphrates, Iraq

A British Pilot in a BE2C approaching Hit along the course of the River Euphrates, 1919, by Sydney Carline.
Ypres, Belgium

Ypres Seen from an Aeroplane, 1918, by Richard Carline.
The Sea of Galilee

The Sea of Galilee: Aeroplanes Attacking Turkish Boats, 1919, by Sydney Carline.
Baghdad, Iraq

Baghdad, 1919, by Richard Carline.
The Iraqi Desert

Flying Over the Desert at Sunset, Mesopotamia, 1919, by Sydney Carline.