Bourgoin, Plate 188 (top)

• The symmetry group of the tiling is 2*22 (cmm).
• Contains one regular two-pointed star polygon with vertex angle of 99.22 (739475071π/1341415620)°.
• Contains one regular 10-pointed star polygon with vertex angle of 72°.
• There are five non-regular reflective tiles (including one kite and one dart) and one reflective pair.
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 340 polygons.

1. Page 320 from [abas]
2. Photo by David Wade: EGY 0923 (al-Azhar mosque, Cairo, Egypt) from [wadei]
3. Plate 188 (top) from [bourgoin]
4. Vol2, Plate 164 (Taybars, Cairo, Egypt. Facade) from [creswell]

• Wade photo BOU 188
• Wade photo EGY 0923

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