Bourgoin, Plate 68

• 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 135°.
• Contains one regular 12-pointed star polygon with vertex angle of 75°.
• There are three 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 415 polygons.

• Page 141 (based upon 6.6.6) of S J Abas and A S Salman. Symmetries of Islamic Geometrical Patterns, World Scientific, 1993. ISBN 981021704. [abas] {Very many patterns in black and white.}
• Plate 68 of J Bourgoin. Arabic Geometrical Pattern and Design, Dover, 1879. ISBN 048622924. [bourgoin] {Classical book of around 200 hand-produced patterns, in back and white.} Fuller version available on Internet.

• Wade photo EGY 0518
• Wade photo EGY 1521
• Wade photo BOU 068

• Tiling with star polygons with 12 points whose vertex angle is 60° and a hexagon

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