Geometric Model by A. Harry Wheeler, Pentagonal Trapezoidal Dodecahedron

Geometric Model by A. Harry Wheeler, Pentagonal Trapezoidal Dodecahedron

<< >>
Usage conditions apply
This tan paper model has twelve points. Two, opposite one another, are at the vertex of pentagonal pyramids (the bases of the pyramids are withn the surface). Ten, going around the sides, are formed from two trapezoids and two triangles. The trapezoids meet in a short line and the base below each short line segment is a trapezoid (again within the surface). A mark on the object reads: Pentagonal (/) Trapezoidal (/) Dodecahedron (/) June-16-1931. A typed paper tag reads: DT2. A third mark is Wheeler's number for the model: 288
Wheeler called the model a pentagonal trapezoidal dodecahedron, and considered it the second in the series of these.
Compare MA.304723.158 and MA.304723.574. Both have the label DT2, but they are quite different.
Currently not on view
Object Name
Geometric Model
date made
1931 06 16
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
Physical Description
paper (overall material)
tan (overall color)
cut and folded (overall production method/technique)
average spatial: 6.5 cm x 9.5 cm x 6.5 cm; 2 9/16 in x 3 3/4 in x 2 9/16 in
ID Number
accession number
catalog number
model 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
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object