Back in the late 1800s, this device was considered to be “High Tech”. It is a stereo graph viewer that Abraham Lincoln purchased for his sons when they lived in Springfield, Illinois.
The photograph above shows the original stereo graph that now sits in the Lincoln Home. This device was used by the Lincoln children to view photographs, also newer technology at the time, in what they thought was 3D. They would take turns in the evening, looking at various photographs form around the world.
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