Mausoleum of Moulay Ismail

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains five regular 8-pointed star polygons with vertex angle of 90°.
• Contains one regular 16-pointed star polygon with vertex angle of 45°.
• There are 16 non-regular reflective tiles (including 2 kites) and two reflective pairs.
• The tiling satisfies the two-colour condition with straight cross-overs, but interlace counts not determined.
• The tiling is edge-to-edge.
• As drawn, contains about 1803 polygons.

1. Photo from Nick Crossling (Mausoleum of Moulay Ismail, Meknes, Morocco) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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