A window in the Great Mosque, Damascus

• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains three regular two-pointed star polygons with vertex angle of 60°.
• Contains one regular three-pointed star polygon with vertex angle of 60° - composed of kites.
• There are two non-regular reflective tiles (including one kite).
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 229 polygons.

1. Photo by Dick Osseman (Great Mosque, Damascus, Syria. A window) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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