Boxed set of 200 WWI stereo views and stereoscope

In the decades pre­ced­ing World War I, stereo­scop­ic pho­tog­ra­phy expe­ri­enced a major revival in France. As a result, many sol­diers took their stereo cam­eras to the trench­es. They record­ed dai­ly life at the front, but also the exten­sive destruc­tion and the harsh real­i­ties of the war. Dur­ing the con­flict, pub­lish­ers began issu­ing and dis­trib­ut­ing the first stere­oviews. In the 1920s, the sale of stere­oviews depict­ing the war reached its peak.
(from: Stere­oscopy History)