Bourgoin, Plate 124

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 1.25°.
• Contains one regular 9-pointed star polygon with vertex angle of 72.5°.
• Contains one regular 12-pointed star polygon with vertex angle of 72.5°.
• There are 14 non-regular reflective tiles (including 5 kites).
• The tiling satisfies the interlace condition and has three finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 789 polygons.

1. Photo from book (Oljaito's mausoleum, Sultaniyeh, Iran. Carved stucco) from [pc] (1312AD, 711AH)
2. The museum of Egyptian civilisation (Abu al-Bakr Muzhir, Cairo, Egypt) from [pc] (1479AD, 884AH)
3. Thes. Islamicus F4694 (Ghanim al-Bahlawan, Cairo, Egypt) from [pc] (1479AD, 884AH)
4. Photo from Ayman Soliman (al-Ghuri, Cairo, Egypt. Minbar) from [pc] (1504AD, 909AH)
5. Page 272 (Mustafa Shurbaji Mirza, Cairo, Egypt. Mihrab) from [okane2] (1698AD, 1109AH)
6. Fig 16.9 photo, Fig 16.11 overlay from [ww]
7. Photo by David Wade: EGY 1723 (al-Ghuri, Cairo, Egypt) from [wadei]

• Wade photo EGY 1723

• Tilings not constructible by straightedge and compass

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