Bourgoin, Plate 42

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one regular four-pointed star polygon with vertex angle of 45°.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There are two non-regular reflective tiles.
• 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 197 polygons.

• Plate 42 from [bourgoin]
• Page 27 (Great Mosque of Cordoba) from [broug]
• Similar to Page 44 from [cahier]
• Figure 28 from [elsaid]
• Page 41 (Bronze decoration on the door of a small mosque in front of the Bab an-Nasr (city gate)) from [hessemer]
• Figure 52 (Cairo: mausoleum of Sultan Qalawun) from [hill]
• Plate XLIII(14) (Colours based on this) from [jones]
• Plate LVI (The Alhambra, Mosaic in Dado of Salon de Comares) from [murphy]
• Vol 1, pages 258 and 353, Vol 2 page 87 (Drawing by maalleem Mulay Hamed; Marrakesh, Dar Beida) from [paccard]
• From Tony Lee (Extremely common thoughout Islam, from Morocco to India) from [pc]
• Two photos from David Wade (Underneath North window, Mirador de Lindaraja) from [pc]
• Page 50 from [wade]

• Wade photo BOU 042
• Wade photo EGY 0909
• Wade photo SPA 1009
• Wade photo SPA 1902

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