Item is a novelty compact collapsible tinplate stereoscope given as a premium from cigarette brands. The cover of the object is built in the shape of a small book. It is detailed with green, gold and yellow floral designs. Once item is unlocked, a viewer with small lenses pops out parallel to a small folding card holder. The lenses slide in and out horizontally and the built in round topped frame move back and forth. Object was built like this to allow the user to focus. Stereoviews are 40 mm. Viewing lenses are 60 mm in focal length. This object was used to view two nearly identical photographs, or stereographs, as one three dimensional image. The stereograph would be placed in the card holder and adjusted to fit the user's vision until the two images overlap to mimic a three-dimensional effect.This stereoscope comes with 12 black and white silver gelatin stereographs of Victorian Celebrities.

Written on object : The Pocket Rotoscope The Rotary Photographic Co. Lo. 12 New Union St. London, E.C. Works, West Drayton, Midd With 12 Real Photographic Stereograms Views, Staturary, Celebrities, Children, Comic Scenes, Etc. Patented Ro. No. 442.342.

File consists of stereographs and stereographic sets depicting various locations, buildings, and monuments in England.

9 stereoscopic photographs by Underwood & Underwood.
14 stereoscopic photographs by J.F. Jarvis Publishers.
18 stereoscopic photographs by Keystone View Co.
4 stereoscopic photographs by Frank. M. Good.
4 stereoscopic photographs by T.B. Hutton.
2 stereoscopic photographs by H. Sampson.
1 stereoscopic photograph by W. Brooks.
1 stereoscopic photograph by John Latham.
1 stereoscopic photograph by A. Findlow.
9 stereoscopic photographs by Francis A. Bedford.
1 stereoscopic photograph by Ladmore and Son.
2 stereoscopic photographs by The London Stereoscopic and Photographic Co.
4 stereoscopic photographs by The London Stereoscopic Co.
1 stereoscopic photograph by Universal Stereoscopic Co.
8 stereoscopic photographs by Kilburn Brothers; 10 stereoscopic photographs in association with James M. Davis
4 stereoscopic photographs by Universal View Co.
20 stereoscopic photographs by F. York.
2 stereoscopic photographs by Alfred S. Campbell.
1 stereoscopic photograph by H. C. White Co.
1 stereoscopic photograph by J. G. Parks.
1 stereoscopic photograph by G. E. Elliot
1 stereoscopic photograph by W. England.
1 stereoscopic photograph by Poulton and Son.
1 stereoscopic photograph by F. Jones.
1 stereoscopic photograph by J. Holroyd.
1 stereoscopic photograph by The Anglo American View Co.
1 stereoscopic photograph by G. W. Wilson.
1 stereoscopic photograph by S. Thompson.
1 stereoscopic photograph by C. R. Lobb.
1 stereoscopic photograph by J. H. Ford.
2 stereoscopic photographs by Griffith & Griffith
1 stereoscopic photograph by L. A. Wiswell
5 stereoscopic photographs by Strohmeyer & Wyman
1 Stereoscopic photograph by Webster & Albee
70 stereoscopic photographs by unidentified publishers.
1 series by Underwood & Underwood
Additional territories and dependencies include: Gibraltar, Isle of Wight, Guernsey, Isle of Man, Bermuda

File contains double-sided stereographs (with images on both sides of the card) that depict buildings, animals and people at the beach, a lake, a creek bank, an island in the middle of a lake with a person on it a street scene, an Indigenous Person and Paul Wing Jr.

1 photo album, with a tan/gold cover. Images focus on people/families, nature and locations

Item is made of black plastic. Lens and stereoscopic image fold up from bottom plate that reads "Made in England. Design Registered." Missing backing behind images. Comes with a stereograph of a parade

Stereographs in this series were photographed by James M. Davis, and published by B.W. Kilburn, Littleton, New Hampshire.