Pennsylvania Railroad, Wissahickon. Stereoscope card. 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.

Пенсильвания железная дорога Пенсильвании Wissahickon Creek PA потоки purviance wt william t фотограф стереоскопические виды Wissahickon Соединенные Штаты центральный железная дорога Роберт Деннис коллекция стереоскопических изображений 19 век история Пенсильвании сверхвысокое разрешение высокое разрешение публичная библиотека Нью-Йорка

1870 - 1880

New York Public Library

https://digitalcollections.nypl.org/

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