In Islamic Style

• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 25.71 (π/7)°.
• Contains three regular heptagons.
• Contains two regular 14-pointed star polygons with vertex angle of 102.85 (4π/7)°.
• There are 8 non-regular reflective tiles (including 2 kites and one dart).
• The tiling satisfies the interlace condition and has one finite interlace and five infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 871 polygons.

1. From Tony Lee of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

• In Islamic Style
• Tilings not constructible by straightedge and compass

Photo?

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