Inspired by the New York Public Library’s Stereogranimator (http://stereo.nypl.org/), we’ve created a few animated stereographs from the collections on New York Heritage!
Stereoscopic cards were precursors to the iconic View Master toy. Users slid the stereograph into a viewer and looked at each half of the image with a different eye, causing an optic illusion of depth because each separate image was taken from a slightly different angle.
You might not be able to spot the subtle differences between the two halves of this stereographic image, Burial Mound of the Seneca Indians at the Old Castle, Kanadesaga, (Geneva, N.Y.) from 1879:
Here are some other examples at work:
Image shows stereograph postcard with view of Ivy Arch bridge in Delaware Park with flower beds and a well maintained carriage road underneath the bridge, circa 1905-1910.
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Collections:Albany Institute of History & Art Albany Public Library Bethlehem Public Library Buffalo & Erie County Public Library Buffalo Olmsted Parks Postcards & Stereo Views Chautauqua-Cattaraugus Library System Crandall Public Library Crouse Hospital Earlville Free Library Erieville-Nelson Heritage Society Featured Geneva Historical Society Geneva James G. Vail Collection Highland Hospital Little Falls Public Library Lourdes Hospital New-York Historical Society New York State Military Museum Oneida Public Library Onondaga County Public Library Rochester Medical Museum & Archives RRLC Newspaper Collection Saratoga Springs Public Library St. Lawrence County Historical Association Steinmetz Digital Collection of Schenectad SUNY Upstate Syracuse Polish Home Twentieth Century Club of Buffalo University at Buffalo University of Rochester Medical Center Watervliet Public Library