The Punch Bowl, Queens Canon, Glen Eyrie.

Colorado 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.

colorado manitou springs colo glen eyrie colo palmer william jackson 1836 1909 homes and haunts punch bowl queens canon glen eyrie high resolution gurnsey b h byron h 1833 1880 photographer stereoscopic views punch bowl queens canon glen eyrie united states robert dennis collection of stereoscopic views 19th century new york public library back of stereoscopic card

1858 - 1900

New York Public Library

http://digitalcollections.nypl.org/

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