Old Patent Office Building Stereoview c1874 Model Room Washington DC Photo F521 For Sale

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Old Patent Office Building Stereoview c1874 Model Room Washington DC Photo F521:
$14.95

\"Model Room of the Patent Office.\"

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.

Imperial-size stereograph, measuring about 4x 7 inches.

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