Hatuniye complex, Kayseri

• The symmetry group of the tiling is 442 (p4).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one square.
• Contains one regular octagon.
• There is one non-regular reflective tile (including one dart) and one tile with no mirror image.
• The tiling satisfies the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 133 polygons.

1. Photo by David Wade: TUR 0728 (Hunat Hatun Complex, Kayseri, Turkey) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1432AD, 835AH)

• Wade photo TUR 0728

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