Itimad-ud-Daula's Tomb, Agra

• The symmetry group of the tiling is 632 (p6).
• All the internal angles of the constituent polygons are a multiple of 60°.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are no non-regular reflective pairs and one tile with no mirror image.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• The tiling satisfies the two-polygon condition.
• As drawn, contains about 51 polygons.

1. Page 149 (Itimad-ud-Daula's Tomb, Agra, India. Corner tower of tomb, Colouring indistinct) of Umberto Scerrato. Momuments of Civilization: Islam, Cassell, London, 1976. ISBN 030429695. [scerrato] {First published in Italy in 1972}
2. Page 23 (2) (This tiling has left and right-handed versions) of David Wade. Pattern in Islamic Art, Studio Vista, 1976. ISBN 028970719. [wade] {Some beautiful coloured patterns, but source not given.}
3. Page 352 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 PIA 023

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