Cloth merchants' mosque in Tehran

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 7.5°.
• Contains five regular octagons.
• Contains two regular four-pointed star polygons with vertex angle of 45°.
• There are five non-regular reflective tiles.
• The tiling does not satisfy the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 219 polygons.

1. Page 245 (Cloth merchants' mosque, Tehran, Iran) of Javad Shafai. On decoration in Persian architecture and wood carving, Tehran, 1977. [shafai] {In Persian}

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