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 10 regular heptagons.
• Contains one regular 7-pointed star polygon with vertex angle of 77.14 (3π/7)°.
• Contains one regular 14-pointed star polygon with vertex angle of 102.85 (4π/7)°.
• There are 11 non-regular reflective tiles (including one kite and one dart).
• The tiling satisfies the interlace condition and has four finite interlaces and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 783 polygons.

1. From Tony Lee, dated 6th May 1978 of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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

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