Ross Solid, Frustrum of a Square Pyramid, Possibly Part of a Dissected Model of a Pyramid

Ross Solid, Frustrum of a Square Pyramid, Possibly Part of a Dissected Model of a Pyramid

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This is one of a series of models illustrating the volume of solids designed by William Wallace Ross, a school superintendent and mathematics teacher in Fremont, Ohio. The hollow metal model is of has four trapezoids as sides, with a square base and a square top. It has no labels.
It may be intended as the frustum of the square pyramid represented by model with 1985.0112.213. If so, it would be part of Ross Solid #10.
For Ross solids, see 1985.0112.205 through 2012.0112.217. For further information about Ross models, including references, see 1985.0112.191.
Currently not on view
Object Name
Geometric Model
geometric model
Other Terms
Geometric Model; Frustum Of Pyramid
date made
ca 1895
place made
United States: Ohio, Fremont
Physical Description
metal (overall material)
overall: 15 cm x 10 cm x 10 cm; 5 29/32 in x 3 15/16 in x 3 15/16 in
ID Number
catalog number
accession number
Credit Line
Gift of Wesleyan University
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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