This brown paper model is held together with tape. Both the top and bottom have an inverted pentagonal pyramid, with the pyramid facing inside. The side faces are ten triangles facing in alternate directions. Hence the model has a total of twenty triangular faces.
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.