Albumen print – A print made using albumen paper, popular for photographic printing between 1850 and 1900. Most of the photographs in this exhibition are albumen prints.

Binocular camera – A camera with two identical and usually fixed lenses which are separated at a distance slightly larger than the gap between our eyes. The two pictures necessary for the stereo pair are taken simultaneously and have to be transposed to be viewed in 3D.

Daguerreotype – An early photographic process named after its inventor, Louis Daguerre (1787–1851), which uses a silver-plated sheet of copper as the photographic support.

Stereoscopy - Stereoscopy is a way of seeing in 3D. The stereoscopic images in this show are made up of two photographs taken from slightly different angles. Looking at these images with a viewer fuses them into one three-dimensional image, replicating the way our eyes perceive depth.

Stereoscope - A stereoscope is a device which helps the brain fuse two images to view a single three-dimensional image.

Stereocard - A stereocard is the physical stereoscopic image, usually made up of two printed photographs mounted side by side on cardboard.

Three dimensional - Having or appearing to have three dimensions (= length, width, and height) and therefore looking real.

Devilry - Intentional bad behaviour by someone who finds it funny or enjoyable.

Diableries – Stereoscopic photographs depicting small-scale clay models of devils and skeletons in amusing group scenes, often with underlying meanings. Popular in France from the mid-late nineteenth century and among collectors globally today.

Photographs - A picture made using a camera.

Archive - A collection of historical documents or records providing information about a place, institution, or group of people.

19th century - The 19th century began on 1 January 1801, and ended on 31 December 1900. The 19th century was characterized by vast social upheaval.

Virtual Reality - Virtual reality is a simulated 3D environment that enables users to explore and interact with virtual surroundings in a way that approximates reality.