Bourgoin, Plate 92

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains one regular four-pointed star polygon with vertex angle of 60°.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• Contains one regular 12-pointed star polygon with vertex angle of 120°.
• There are two non-regular reflective tiles and one reflective pair.
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace.
• The tiling is edge-to-edge.
• As drawn, contains about 315 polygons.

• Page 165 from [abas]
• Plate 92 from [bourgoin]
• Vol 2, Plate 52c (Cairo: mosque of Sultan Baybars (1266-9), NW end of transept) from [creswell]
• Page 36 (Wall decoration from the Mausoleum of al-Mansur Qalaun, 1284-85) from [hessemer]

• Wade photo BOU 092

• Tiling with three or more proper stars

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