Geometric Model by A. Harry Wheeler, Intersecting Polar Spherical Triangles
This flexible paper model consists of two intersecting spherical triangles. Various letters are written on the faces. A pencil mark on the object reads: August-20-1916. A tag attached to the model reads: 302.
Credit: Gift of Helen M. Wheeler
1916 08 30
MA.304723.177
Image and text © National Museum of American History, 2021
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National Museum of American History
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