al-Ashraf Barsbay

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains three squares.
• Contains four regular two-pointed star polygons with vertex angle of 45°.
• Contains one regular octagon.
• There are three non-regular reflective tiles (including one kite).
• The tiling satisfies the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 495 polygons.

1. Photo from Ayman Soliman (al-Ashraf Barsbay, Cairo, Egypt) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1425-33AD, 828-36AH)

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