Geometric Model by Hobron, a Student of A. Harry Wheeler, Great Icosahedron


The great icosahedron is a regular polyhedron formed from twenty intersecting equilateral triangles which combine to produce a figure with twelve points. The surface was first described by the Frenchman Louis Poinsot in 1809 and is now known as a Kepler-Poinsot solid. This is a cut and folded paper version of the surface. A mark on it reads: 367. Another mark reads: Hobron '25.

For an older model of this surface, see MA.304722.28. Compare 1979.0102.092, 1979.0102.259, and 1979.0102.278


H. M. Cundy and A. P. Rollet, Mathematical Models, Oxford: The Clarendon Press, 1961.

Magnus J. Wenninger, Polyhedron Models, Cambridge: Cambridge University Press, 1974, p. 63-64.

Date Made: 1925

Location: Currently not on view

Place Made: United States: Massachusetts, Worcester

Subject: Mathematics


See more items in: Medicine and Science: Mathematics


Exhibition Location:

Credit Line: Gift of Louise D. Campbell

Data Source: National Museum of American History

Id Number: 1979.0102.259Accession Number: 1979.0102Catalog Number: 1979.0102.259

Object Name: Geometric Model

Physical Description: paper (overall material)Measurements: overall: 11 cm x 11 cm x 11 cm; 4 11/32 in x 4 11/32 in x 4 11/32 in


Record Id: nmah_905126

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