Samarra, Iraq

• The symmetry group of the tiling is 442 (p4).
• All the internal angles of the constituent polygons are a multiple of 90°.
• Contains one square.
• There is one non-regular reflective tile.
• The tiling does not satisfy the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 117 polygons.

1. Page 7 (Samarra, Iraq. Stucco decoration) of Robert Field. Geometric Patterns from Islamic Art and Architecture, Tarquin Publications, 1998. ISBN 189961822. [field4]

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