Great Mosque, Thatta

• 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 90°.
• Contains one regular 12-pointed star polygon with vertex angle of 60°.
• 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 420 polygons.

1. Figure 13 (Great Mosque, Divrigi, Turkey) from [aslanapa] (1241AD, 638AH)
2. Page 267, bottom (Great Mosque, Thatta, Pakistan) from [degeorge2] (1647AD, 1057AH)
3. Fig 7.3a from [ww]
4. Photo by David Wade: EGY 1513 (al-Hakim, Cairo, Egypt) from [wadei]
5. Table 25 (Sultan Han, Turkey) from [erdmann]
6. The Metropolitan Museum of Art, 91.1.2064 (Cairo, Egypt. Pair of doors, Mamluk) from [pc]

• Wade photo EGY 1513

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