Gaumont 6×13 Stereo Viewer
Gaumont 6x13 Stereo Viewer; Small lever on side for focusing. Interocular adjustment. Catalogues of the era pointed out the optical quality of the lenses on their stereoscopes, with focal lengths practically the same as those on the cameras (i.e. Stereospidos)
MarqueGAUMONT Stéréoscope 6x13
MarqueGAUMONT Stéréoscope 6x13