Bourgoin, Plate 23

• 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.
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace.
• The tiling is edge-to-edge.
• As drawn, contains about 391 polygons.

• Page 158 from [abas]
• Plate 23 from [bourgoin]
• Figure 30, page 68 (Wooden mihrab from mausoleum of Sayyiddah Rukhaiyah, Cairo) from [grube]
• Figure 228 (Tympanum above door and exterior panel, mausoleum of Tusf b. Kathir, Nakhicheven) from [hill]
• Figure 351 (Side of entrance, Hatun Han (1238-9), Pozar, Turkey) from [hill]
• Figure 508 (Turkey: Avanos, Sari Han, niche in main entrance portal) from [hill]
• Figure 508 (Niche in main entrance portal, Sari Han, Avamos, Turkey) from [hill]
• From Tony Lee (A common Middle East and Central Asian pattern, but with varying proportions) from [pc]
• Plate 6 (Tympanum over entrance, mausoleum of Mumine Katun, Nakhicheven) from [useinov]
• Page 47 from [wade]

• Wade photo BOU 023
• Wade photo TUR 0622

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