Bourgoin, Plate 30

For a similar pattern, see Humayun's Tomb, Delhi.

• The symmetry group of the tiling is 4*2 (p4g).
• All the internal angles of the constituent polygons are a multiple of 15°.
• Contains three regular hexagons.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are two non-regular reflective tiles and one reflective pair.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 185 polygons.

1. P030 (No known exact source) 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.
2. Page 312 of S J Abas and A S Salman. Symmetries of Islamic Geometrical Patterns, World Scientific, 1995. ISBN 981021704. [abas] {Very many patterns in black and white, no sources given.}

• Wade photo BOU 030

Photo?

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