Bourgoin, Plate 189

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains 7 regular two-pointed star polygons with vertex angle of 72°.
• Contains five regular pentagons.
• Contains three regular five-pointed star polygons with vertex angle of 72°.
• Contains one regular 10-pointed star polygon with vertex angle of 72°.
• There are 10 non-regular reflective tiles.
• The tiling satisfies the interlace condition and has 6 finite interlaces and no infinite interlace.
• The tiling is edge-to-edge.
• As drawn, contains about 501 polygons.

• Plate 189 of J Bourgoin. Arabic Geometrical Pattern and Design, Dover, 1879. ISBN 048622924. [bourgoin] {Classical book of around 200 hand-produced patterns, in back and white.}

• Wade photo TUR 1119

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