Bourgoin, Plate 68

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 15°.
• Contains one regular three-pointed star polygon with vertex angle of 105°.
• Contains one regular 12-pointed star polygon with vertex angle of 75°.
• There are three non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 473 polygons.

1. Photo by David Wade: EGY 1521 (al-Salih Tala'i Mosque, Cairo, Egypt) from [wadei] (1160AD, 554AH)
2. Page 141 (based upon 6.6.6) from [abas]
3. Photo by David Wade: EGY 0518 (Amir Sarghatmish, Cairo, Egypt) from [wadei]
4. Plate 68 from [bourgoin]

• Wade photo EGY 0518
• Wade photo EGY 1521
• Wade photo BOU 068

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