Achromatic Mirror Stereoscope Achromatic Stereoscope Achromatic Table Stereoscope Beau patent Brewster, Sir David Brown, Theodore Casket Chadwick’s Lenticular Stereoscope Chappuis patent Chappuis, Paul Émile Clairvoyant Claudet patent curved sides Claudet viewing case Claudet, Antoine Cooke patent Cosmorama Crystal Palace Exhibition Cube Day’s Portable Stereoscope Dioramic Stereoscope Graphoscope Graphoscope Negretti & Zambra Great Exhibition of 1851 Johns patent Kilburn, William Edward Knight, George & Sons London Stereoscopic Company