Published by Keystone View Company, formerly one of the largest stereoview publishers in the world. This is a stereoview (also known as a stereograph or stereoscope card). It was one of the first forms of 3D photography. The images were captured with a special stereoscopic camera, which had two lenses - simulating the view of our left and right eyes.The two, nearly identical pictures were then mounted next to each other (most commonly on a piece of cardstock, glued on as photographs or printed as lithographs). The image could then be seen in three dimensions when viewed through a device known as a stereoscope, stereopticon, and/or televiewer. Standard-size stereograph, measuring about 3.5 x 7 inches.
All of my paper items are protected in archival-safe polypropylene sleeves and packaged in rigged cardboard. This item is in the category "Collectibles\Photographic Images\Stereoviews & Stereoscopes". The seller is "calamityphoto" and is located in this country: US. This item can be shipped worldwide.