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• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 9°.
• Contains one regular two-pointed star polygon with vertex angle of 72°.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• Contains one regular 10-pointed star polygon with vertex angle of 72°.
• There are 7 non-regular reflective tiles (including one kite).
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 204 polygons.

1. Thesaurus Islamicus photo (Sultan Hasan, Cairo, Egypt. Lintel of door, east side of north wall) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1356-61AD, 757-62AH)

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