Bourgoin, Plate 137

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 1°.
• Contains one regular 12-pointed star polygon with vertex angle of 60°.
• Contains one regular 18-pointed star polygon with vertex angle of 44°.
• There are 8 non-regular reflective tiles (including 2 kites) and two reflective pairs.
• 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 872 polygons.

1. Vol 2, Figure 129 (Barquq, Cairo, Egypt) from [wahhab] (1384AD, 785AH)
2. Fig 16.1 photo, Fig 16.7 from [ww]
3. Figure 142 (Decorated door) from [clevenot]
4. Page 179 from [abas]
5. Plate 137 (No colour) from [bourgoin]

• Wade photo BOU 137

• Tilings not constructible by straightedge and compass

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