Pentagonal Dodecahedron Small 320×299 Medium 640×597 Large 1024×955 Download Tiff Original 2400×2239 | (407.5 KB) Description Illustration showing a pentagonal dodecahedron. Keywords dodecahedron, dodecahedrons, geometric solid, solids Galleries Dodecahedrons Source: Frederick Converse Beach Encyclopedia Americana (New York, NY: Americana Company, 1903) Courtesy the private collection of Roy Winkelman
