Stereograph

/ˈstɛriəgræf/ (say 'stereeuhgraf), /-graf/ (say -grahf), /ˈstɪə-/ (say 'stear-)

A stereograph consists of two nearly identical photographs that, when viewed through a device called a stereoscope, combine to create a three-dimensional image. This technique was particularly popular during the 19th and early 20th centuries. They often depicted landscapes, architecture and everyday life, providing a more immersive and realistic view of the world.