Very nice small desktop stereo cabinet French, marked"" Stereo car Classifier"" ASTRA. For stereo imagery glass size 4.5 x 10 cm. Height only 31 cm, base 29 cm. Mirror on top for displaying images of paper. No charger available, so that the mechanism has not been tested. All mechanical parts seem to work well. Frosted glass in good condition. Focusing and adjusting the width of the eye. ASTRA Stereo Auto-Classeur. Mahogany stereo viewer, for viewing semiautomatic series of glass slides in 4.5 x 10.7 cm format. Ocular lenses are achromatic and can focus upon actuation of the tooth. Interpupillary distance is adjustable. Magazine photos is for 24 slide glass stereo. Images can be presented one after the other in any order. The viewer has a counter. The system mirrors mounted on top of the viewer used to read the inscription that often is mounted in the central part of the slides. In the drawer there is room for 8 magazines. Made around 1900 in France, manufacturer unknown.