About this artwork
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.
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Status
- Currently Off View
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Department
- Photography and Media
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Artist
- Keystone View Co. (Publisher)
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Title
- Geometry
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Place
- New York City (Object made in)
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Date
- 1892–1920
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Medium
- Gelatin silver print, stereo
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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.)
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Credit Line
- Gift of Harold Allen
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Reference Number
- 1976.1080
Extended information about this artwork
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