Emir Kusun

• The symmetry group of the tiling is *12.0• (d12.0).
• All the internal angles of the constituent polygons are a multiple of 15°.
• Contains one regular 12-pointed star polygon with vertex angle of 90°.
• There are 6 non-regular reflective tiles.
• The tiling is edge-to-edge.
• As drawn, contains about 73 polygons.

1. Fig A.32 of Brian Wichmann and David Wade. Islamic Design: a Mathematical Approach, Springer, 2017. ISBN 978-3-319-69. [ww] {}
2. Page 183 (Wikala of Qawsun, Cairo, Egypt) of Henri Stierlin. Splendours of an Islamic world, Tauris Parke, 1997. ISBN 186064219. [stierlin2] {219 pages}

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