Bourgoin, Plate 132

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 3.75°.
• Contains one regular 12-pointed star polygon with vertex angle of 52.5°.
• Contains one regular 16-pointed star polygon with vertex angle of 52.5°.
• There are 11 non-regular reflective tiles (including 2 kites) and two reflective pairs.
• The tiling satisfies the interlace condition and has two finite interlaces and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 815 polygons.

1. Figure 112 (al-Mu'ayyad, Cairo, Egypt. Bronze door) from [wahhab] (1420AD, 823AH)
2. Photo by David Wade: EGY 1234 (al-Mu'ayyad, Cairo, Egypt) from [wadei] (1420AD, 823AH)
3. Fig 11.6c photo from [ww]
4. Page 256 from [abas]
5. Plate 132 from [bourgoin]

• Wade photo EGY 1234
• Wade photo BOU 132

• Stars with 16 points with vertex angle not equal to 45°

v54