Union Square, San Francisco, showing Dewey Monument, the Call and Dana Bldgs.

California 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.

california san francisco calif earthquakes san francisco earthquake calif 1906 monuments memorials san francisco union square san francisco calif the miriam and ira d wallach division of art prints and photographs photography collection union square dewey monument dana bldgs monuments and memorials stereoscopic views union square dewey monument call dana bldgs united states robert dennis collection of stereoscopic views building ultra high resolution high resolution new york public library back of stereoscopic card

1906 - 1906

New York Public Library

https://digitalcollections.nypl.org/

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