Late 1800's, Early 1900's Stereoview House with People in the Yard No Markings

Late 1800's, Early 1900's Stereoview House with People in the Yard. No Markings To Identify. Keystone View Company. This is a stereoview card, also know as a stereograph or stereoscope card. It was one of the first forms of 3D photography. The images were captured with a special 2 lens camera. The 2 nearly identical pictures were then mounted next to each other. The image then could be viewed through a Stereoscope, stereopticon, or televiewer device. In fair condition for its age. Very Rare.