"Stereoscopic Camera 6 X 13. Ontoscope Cornu Zeiss 1920"
Rare Cornu stereoscopic camera, Ontoscope. Makes double views on 6 x 13 cm glass plate (each picture is a 6x6). Nickel plated brass model. Equipped with optical Zeiss Tessar opening 1: 4,5. Diaphragm. Fast speeds: 150, 200, 300 and slow: 100, 50, 25, 10, 5/s. Central mirror viewfinder, and another concave lens folding and engraved collimator. Spirit level. Supplied with its case containing: 3 cartridge of 12 plates, 3 cartridge with single plate, 1 frosted glass. Good condition, works. Good optics. No signs of shock or corrosion. 7 x 17 x 14 cm. 
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