Device almost new, in the original wooden box, description and usage instructions. STEREOBINOKEL stereo viewer with two interchangeable eyepieces nearby. The device has already been developed and manufactured in the 30s by Prof. Stumpf of Elektromedizinische Werkstätte Fridrich Janus, Landau / Isar. The device shown here belongs to the second generation and was manufactured in the early 50s the STEREOBINOKEL is mainly used for displaying X-ray images in medicine large format, but can also be used for smaller stereo images. Extract the instructions:"" In the view stereo images, as commonly used in photography in formats 10.7 x 4.4 and 6 x 13 cm, with STEREOBINOCLE, keep in mind that not you need to change the two partial images (right and left), to be performed when viewers lens-stereo, used since the change is optically produced as a result of the investment of the images by the prisms of the binocular. therefore, to watch stereoscopically produced negative stereoscopic camera and"" see"" the copies taken from them without cutting and pasting them on the other side. http://www.stereoskopie.com/Handbetrachter_nach_1945/Stereobinokel/body_stereobinokel.html
