ROGER DUBRONI Beautiful Stereograph in oak, brass and felt with its original carrying case. Marked in the drypoint " LE STEREOGRAPHE N°2 N° 429 DUBRONI 9 RUE AUBER PARIS ". The stereograph n°2 was invented in 1877 by Auguste Nicolle (successor of Dubroni in 1867 who kept the company name). In 1877 Dubroni published a book " Le Stéréographe type no 2 en bois. Pocket camera for dry collodion photography" and proposed to Victor Largeau a new model "valuable for military reconnaissance and exploration trips". Largeau tried the camera in southern Algeria in preparation for an expedition to Niger. Marketed for 6-10 years, the seriograph was thus adopted for military expeditions and explorations. But the photographic chamber required adaptations and Giraud turned to Puech to create a new camera which supplanted the stereograph in 1883. Our model has a brass shutter cap engraved "15.2" and "1.9", two plates, and a frosted glass frame. It can be placed on a tripod (missing) as shown in the engraving from Leon Vidal's 1883 "Manuel du touriste photographe", page 133. About 1877-1883 Dimensions (mounted) : 20 x 16 x 20 cm