Ormiston Glen. 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 Wissahickon Creek PA Ормистон Глен высокое разрешение вудворд чарльз уоррен 1836 1894 издатель стереоскопические виды альбумин печатает вручную раскрашенный Ормистон долина Соединенные Штаты Роберт Деннис коллекция стереоскопических изображений 19 век история Пенсильвании публичная библиотека Нью-Йорка

1858 - 1900

New York Public Library

http://digitalcollections.nypl.org/

Creative Commons CC0 1.0 Universal Public Domain Dedication ("CCO 1.0 Dedication")