Seyyed mosque, Esfahan

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains three squares.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There is one non-regular reflective tile.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 405 polygons.

1. fickr photo, IranD47 (Seyyed mosque, Isfahan, Iran. Upper level pattern) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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