Red-button Stereo Realist Viewer - USA-made 5 perforations bakelite stereo slide 3D viewer - lighted, and with adjustable focus and interocular adjustment Observator stereo
Custom made Stereo Viewer for postcard-size stereoviews, wood, folding, with nice lenses - with a lot of interesting 3D (post)cards Observator stereo
Binocluri - Fernrohr ua Busch 6x30 Galilei Mono BOB 25x30 - 1940-1950 - Germania - Collection of 5 x Navy and Military Monoculars
