This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Perpendicular cuts near the four ...
In the Introduction and in the Figure 4 legend of this letter, it was stated that the truncated tetrahedron is the only Archimedean solid that is not centrally symmetric. The correct statement is that ...
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