Am Rande eines gewaltigen Abgrunds, Grand View Trail, Grand Canyon, Ariz., USA

Arizona 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.

Arizona Grand Canyon Arizona Schluchten Esel großartiger Aussichtsweg Grand Canyon stereoskopische Ansichten Rand Abgrund Aussicht Pfad Schlucht ariz Robert Dennis Sammlung von stereoskopischen Ansichten 19. Jahrhundert ultrahohe Auflösung hohe Auflösung Natur Nationalpark New Yorker öffentliche Bibliothek Grand-Canyon-Nationalpark

1860 - 1929

New York Public Library

https://digitalcollections.nypl.org/

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