Geometric Model by Paul Tracy, a Student of A. Harry Wheeler, Eighteen-Faced Polyhedron

Geometric Model by Paul Tracy, a Student of A. Harry Wheeler, Eighteen-Faced Polyhedron

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The faces of this cut and glued tan paper model are six isosceles triangles (three on top and three of the bottom), six irregular heptagons (three adjacent to each group of isosceles triangles), and six additional triangles around the middle (three of these isosceles). A mark in pencil on the model reads: Paul Tracy (/) Nov. 17, 1936. Another penciled mark reads: XY3/XY4.
Currently not on view
Object Name
Geometric Model
Other Terms
Geometric Model; Eighteen-Faced Polyhedron
date made
1936 11 17
associated dates
1936 11 17 / 1936 11 17
Wheeler, Albert Harry
Tracy, Paul
place made
United States: Massachusetts, Worcester
associated place
United States: Massachusetts, Worcester
Physical Description
paper (overall material)
tan (overall color)
cut and glued (overall production method/technique)
average spatial: 6.2 cm x 8 cm x 6 cm; 2 7/16 in x 3 5/32 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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