Geometric Model by A. Harry Wheeler, One-Sided Polyhedron

Geometric Model by A. Harry Wheeler, One-Sided Polyhedron

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This colorful plastic model is inscriptible in a regular tetrahedron. Six irregular hexahedra, with two parallelograms and four trapezoids for sides, have been cut out along the edges of the regular tetrahedron. This leaves (where edges were) four faces that each have an equilateral triangle at the center and coplanar parallelograms emerging from each vertex of the triangle. Numerous sides are coplanar. A mark on the model reads: 653. Wheeler also identified it as his model M12.
A.H. Wheeler, Catalog of Models, A. H. Wheeler Papers, Mathematics Collections, National Museum of American History.
Currently not on view
Object Name
Geometric Model
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
Physical Description
plastic (overall material)
yellow (overall color)
pink (overall color)
orange (overall color)
gray (overall color)
green (overall color)
purple (overall color)
white (overall color)
cut and glued (overall production method/technique)
average spatial: 6 cm x 6.5 cm x 6 cm; 2 3/8 in x 2 9/16 in x 2 3/8 in
ID Number
accession number
catalog number
Credit Line
Gift of Helen M. Wheeler
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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