Folding Stereoscopic Viewer HEGI"" Feldestereo-Verlag"" Frankfurt + 86 sheets 1st World War Folding Stereoscopic Viewer HEGI"" Feldestereo-Verlag"" Frankfurt + 86 photographic plates with two photos per sheet with images of various places around the time of World War 1. In light of investigation we can say that is a product distributed in 1915 by HEGI FELDSTEREO-Verlag, Gilbert Herman company, Frankfurt. The images are from the First World War (1914-1918). The stereoscope was traded along with a series of 25 images related to any of the theaters of the German armed forces (France, Russia, Italy, etc.) These images could be either military reasons (war materiel, soldiers, etc .) and other daily life reasons. They issued several series, of which the type A, B, C, D and E. known The display is in very good condition, it has three slots for inserting images. The images are from the time of the First World War (1914-1918). The vast majority of the D series You can ask any questions about the contraption in question, or even if you want to give us more information regarding this type of equipment.