Antique french folding stereoscope with a set of seven glass slides. Dating to the turn of the 20th century this collapsible metal stereoscope viewer was a travel version of the earlier table top versions. The glass slides depict mainly sites of antiquity and a very interesting anatomical image of a human heart. Marked: unis france paris stereoscopes 76 3. A great addition to your rare photographs collection. Slide viewer measure 5″ wide by 1″ deep by 2.5″ tall (slides measure 5″ by 2.25) and weigh 4.6oz. In good working condition with clear visuals and the slides are also in good condition (please see all pictures as they form part of the condition description).