Octahedron Small 320×262 Medium 640×525 Large 1024×840 Download Tiff Original 2400×1968 | (258.6 KB) Description Illustration showing a flattened octahedron. Keywords flattened octahedron, geometric solid, octahedrons, solids Galleries Octahedrons Source: Frederick Converse Beach Encyclopedia Americana (New York, NY: Americana Company, 1903) Courtesy the private collection of Roy Winkelman
