Library building, Wyoming Avenue. 19th century stereoscopic views of Pennsylvania.

Pennsylvania stereoscopic card.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of more than six decades, Robert N. Dennis (1900-1983).

Stereographs consist of two nearly identical photographs or photomechanical prints, paired to produce the illusion of a single three-dimensional image, usually when viewed through a stereoscope. Stereographs were produced from the 1850s to the 1940s, with the bulk between 1870 and 1920.

pennsylvania scranton pa high resolution hensel l loudolph 1849 1927 photographer stereoscopic views library avenue united states scranton wyoming robert dennis collection of stereoscopic views 19th century history of pennsylvania new york public library back of stereoscopic card

1858 - 1900

New York Public Library

http://digitalcollections.nypl.org/

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