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Category: Photography, Railroads

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The Erie Railroad Glass Plate Negative Collection Using the Collection The collection of 709 images can be accessed via the Library's CONTENTdm server and is fully searchable by keyword, subject, and image number. The item level inventory of the collection in Excel   can help with formulating searches and sorting. NOTE: both links will open new windows. About the Collection The Erie Railroad Company glass plate negatives are arranged by Erie subsidiary railroads in the states of New York, New Jersey, Pennsylvania, and Ohio. Mainline scenes come from all of the preceding states, as well as from Indiana and Illinois.

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DIGITAL COLLECTIONS About Stereographs A stereograph, also known as a stereogram or stereo view, is a double photograph that appears three-dimensional when viewed through a stereoscope. Scientist Charles Wheatstone invented a reflecting stereoscope in 1838 as a laboratory instrument. Some photographers did use this instrument to exhibit photographs, but it was not until the development of the lenticular stereoscope in 1850 by Sir William Brewster that stereographs became popular. They reached their height of popularity between 1870 and 1890 but continued to be created until as late as 1940. The term "stereograph" is said to have originated with Oliver Wendell Holmes who, in addition to being an author, poet, physician, and lecturer, invented a hand stereoscope in 1859.

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