45 x 107 format 6 x 13 format 7 x 13 format 8 & 9 8.5 x 17 format 9 x 14 format American Novelty Company Apédioscope Apéscope Art Nouveau Astra Auto-Stéréoscope Autochrome Betrachtungs Apparat Binocular-style stereoscope Bize, Lucien Bloc-Omnium Block, Adolphe Box pattern stereoscope Box-type stereoscope Boxed stereoviews Busch, Emil Capsa Carl Zeiss Jena Cartoscope Caténoscope Chadwick’s Lenticular Stereoscope Chain-based stereoscope Chambre Mobile Coin-operated stereoscope Cornu, Gustave