Bourgoin, Plate 117

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 3°.
• Contains three regular pentagons.
• Contains one regular 8-pointed star polygon with vertex angle of 72°.
• Contains one regular 12-pointed star polygon with vertex angle of 72°.
• There are 13 non-regular reflective tiles (including 5 kites) and one reflective pair.
• The tiling satisfies the interlace condition and has five finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 539 polygons.

1. Photo by David Wade: EGY 1011/1005/1007 (al-Azhar mosque, Cairo, Egypt) from [wadei] (1474AD, 878AH)
2. Photo by David Wade: EGY 1401 (Qaytbay, Cairo, Egypt) from [wadei] (1474AD, 878AH)
3. Photo from Ayman Soliman (al-Azhar mosque, Cairo, Egypt) from [pc] (1474AD, 878AH)
4. Thesaurus Islamicus (Ghanim al-Bahlawan, Cairo, Egypt. Minbar) from [pc] (1479AD, 884AH)
5. Photo by David Wade: EGY 1721 (al-Ghuri, Cairo, Egypt) from [wadei]
6. Plate 117 from [bourgoin]
7. Volume 2, Figure 191 from [wahhab]

• Wade photo BOU 117
• Wade photo EGY 1011
• Wade photo EGY 1401
• Wade photo EGY 1005
• Wade photo EGY 1007
• Wade photo EGY 1721

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