Bourgoin, Plate 179

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains 9 regular two-pointed star polygons with vertex angle of 72°.
• Contains two regular pentagons.
• Contains one regular 10-pointed star polygon with vertex angle of 72°.
• There are 6 non-regular reflective tiles.
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace.
• The tiling is edge-to-edge.
• As drawn, contains about 337 polygons.

• Page 314 from [abas]
• Plate 179 from [bourgoin]
• Internet photo 313 (Left: house sidi yusuf bronze interior door: view 14thc) from [d-avennes]
• Figure 74 (Cairo: madrasa-mausoleum of Amir Sunqur Sa'di) from [hill2]
• From Tony Lee (Common and widespread) from [pc]

• Wade photo EGY 0932
• Wade photo TUR 0731

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