Bourgoin, Plate 23

A common Middle East and Central Asian pattern, but with varying proportions

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains one equilateral triangle.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are five non-regular reflective tiles (including 2 kites).
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 487 polygons.

1. Figure 30, page 68 (Sayyida Ruqayya, Cairo, Egypt. Wooden mihrab) from [grube] (1133AD, 527AH)
2. Page 238, Fig. 101c (Great Mosque, Niksar, Turkey. Incised stone portal) from [bonner] (1145AD, 539AH)
3. Figure 228 (Mausoleum of Tusf ibn Kathir, Nakhicheven, Azerbaijan, Central Asia. Tympanum above door and exterior panel) from [hill]   Variant B(1161-2AD, 555-6AH)
4. Figure 351 (Hatun Han, Pozar, Turkey. Side of entrance) from [hill]   Variant A(1238-9AD, 635-6AH)
5. Figure 508 (Sari Han, Akseray-Kayseri road, Turkey. Niche in main entrance portal) from [hill]   Variant D(1249AD, 646AH)
6. Photo by David Wade: TUR 0622 (Sari Han, Akseray-Kayseri road, Turkey) from [wadei]   Variant D(1249AD, 646AH)
7. Page 158 from [abas]
8. Page 47 from [wade]
9. Page 58, photo 36 (Arghun Bimaristan, Aleppo, Syria. Incised stone portal) from [bonner]
10. Plate 23 from [bourgoin]
11. Plate 6 (Mausoleum of Mumine Katun, Nakhicheven, Azerbaijan, Central Asia. Tympanum over entrance) from [useinov]   Variant C

• Wade photo BOU 023
• Wade photo TUR 0622

• Patterns with variants
• Tilings with site logo Kunda Thalatha

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