Geometry
Keystone View Co.
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.)
- Genre
- Photography
- Museum
- Art Institute of Chicago
Tags
photographic techniques19th centuryphotographyalbumen processphotographic processesblack-and-white photographyalbumen silver printphotographstereograph (albumen)
About
Text printed on reverse of stereocard: No. 32 – (34213) Geometry Unit – PolyhedronsTriangular pyramids which have equivalent bases and equal altitudes are equivalent.
![Modern Steel Plant along the Monongahela River, Pittsburg[h], Pa., U.S.A.](https://media.getty.edu/iiif/image/e1c94a4f-9cfd-4269-9545-99a8c91662e5/full/843,/0/default.jpg)