Geometry

Photography and Media

c. 1900

Keystone View Company
American, 1892-1963

Text printed on reverse of stereocard:

No. 43 – (34224) Geometry Unit – The Sphere
A sphere can be circumscribed about any given tetrahedron.
Corollary: Through four points not in the same plane one spherical surface, and only one, can be passed.
Corollary: The four perpendiculars erected at the centers of the faces of the tetrahedron meet at a point.

Status: Currently Off View
Department: Photography and Media

Artist: Keystone View Co. (Publisher)
Title: Geometry
Place: New York City (Object made in:)
Date Dates are not always precisely known, but the Art Institute strives to present this information as consistently and legibly as possible. Dates may be represented as a range that spans decades, centuries, dynasties, or periods and may include qualifiers such as c. (circa) or BCE.: 1892–1920
Medium: Gelatin silver print, stereo
Dimensions: Each image: 7.8 × 7.6 cm (3 1/8 × 3 in.); Card: 8.8 × 17.8 cm (3 1/2 × 7 1/16 in.)
Credit Line: Gift of Harold Allen
Reference Number: 1976.1080

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Date Dates are not always precisely known, but the Art Institute strives to present this information as consistently and legibly as possible. Dates may be represented as a range that spans decades, centuries, dynasties, or periods and may include qualifiers such as c. (circa) or BCE.

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