Images

A close-up of the Nile Mosaic (c. 2nd century BCE), depicting Ptolemaic ships with soldiers onboard. National Archaeological Museum of Palestrina.

A close-up of the Nile Mosaic (c. 2nd century BCE), depicting a police boat in Ptolemaic Egypt. National Archeological Museum of Palestrina.

A drawing of a 12-wind compass rose as imagined by the Ptolemaic admiral Timosthenes (3rd century BCE).

Statue of Søren Kierkegaard (1813-1855) in the Royal Library Gardens, Copenhagen.

Søren Kierkegaard (1813-1855), drawing by Knud Gamborg (1828-1900). The Royal Library, National Collections Department, Prints and Photographs, Copenhagen.

Søren Kierkegaard (1813-1855), litograph by J. Borchert, after the drawing of N.C. Kierkegaard, c. 1840. The Royal Library, National Collections Department, Prints and Photographs, Copenhagen.

A May 1941 photograph showing firefighters in Queen Victoria Street during the London Blitz. (Imperial War Museums)

Women volunteers of the Auxiliary Fire Service (AFS) during the London Blitz. They are plotting the distribution of fire engines on a map of London in the regional control centre. (Imperial War Museums)

A British recruitment poster calling for women volunteers for the Air Raid Precautions Service (ARP) and Auxiliary Fire Service (AFS) during the London Blitz. (Imperial War Museums)

A photograph of an Auxiliary Fire Service unit in London during the London Blitz. (Imperial War Museums)