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

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

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This plastic model has three yellow faces on the top and another three on the bottom. Each small black triangle in a triangular facet atop the model is coplanar with one larger and two medium-sized black triangles that are adjacent to it.. This true for a triangular facet on the bottom as well, making for six black faces and six yellow faces total. The model has nine edges and twenty-one vertices.
A sticker on the side reads: e - k + f = 0 (/) 9 – 21 + 12 = 0. A mark reads: 709. Wheeler considered this model as composed of two elements of his model 708 (MA.304723.416).
Compare MA.304723.403 and MA.304723.406.
Currently not on view
Object Name
Geometric Model
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
Physical Description
plastic (overall material)
black (overall color)
yellow (overall color)
cut and glued (overall production method/technique)
average spatial: 9.6 cm x 15.8 cm x 14 cm; 3 25/32 in x 6 7/32 in x 5 1/2 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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