Otto Schönstein - „Das Raumbild“ historische deutsche Monatszeitschrift für Stereoskopie (jz026) - 1935 #3d imaging #collectible magazine #german publication #historical magazine #photography history #stereoscopy #visual technology
Manifattura artigianale di strumenti ottici "Modello Holmes" Stereo viewer #3d images #artisan optics #collectible optics #holmes model #optical instrument #stereo viewer #stereoscopy #vintage viewer
