Tray-Stereoscope ‘Stéréo-Classeur’, serial no. 42

A bake­lite tray con­tain­ing 25 glass slides can be insert­ed by flip­ping down the front of the view­er. Then, by depress­ing the lever on the right side of the hous­ing, one slide after anoth­er can be exam­ined. On the left side of the view­er, there is a counter which indi­cates the num­ber of the slide and allows nav­i­ga­tion to a spe­cif­ic slide. There is also a small­er lever on the left which brings a mir­ror into posi­tion allow­ing the slide title to be read through the right ocular.
In-depth infor­ma­tion on the Tax­iphote can be found here: Le Tax­iphote — the most famous French stereo viewer