Stereoscope (1857) by Patented by Jas. Lee and A. BeckarsNational Park Service, Museum Management Program
Abraham Lincoln, the only US president to hold a patent, was always interested in the latest technology like his stereoscope.
Lincoln Home National Historic Site, LIHO 273
To operate, cards containing identical photographs pasted side-by-side were placed inside on holders. The viewer looked through the eye holes at the image which took on a three-dimensional appearance, and turned the knob to see the next image. This very expensive toy made the Lincoln boys the envy of the neighborhood.
Park museum staff from Lincoln Home National Historic Site
National Park Service, Museum Management Program Staff: Amber Dumler, Stephen Damm, Ron Wilson, and Joan Bacharach