Bourgoin, Plate 57

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of .5°.
• Contains one regular octagon.
• Contains one regular 16-pointed star polygon with vertex angle of 59°.
• There are 7 non-regular reflective tiles.
• The tiling satisfies the interlace condition and has no finite interlace and two infinite interlaces.
• The tiling is edge-to-edge.
• As drawn, contains about 537 polygons.

• Figure 136, right top of arch (Ilyas mosque at Balat (Mitetus), Turkey) of Oktay Aslanapa. Turkish art and architecture, London : Faber, 1971. ISBN 057108781. [aslanapa] {422 p. : ill. (some col.), maps ; 29 cm}
• Plate 57 (Black and white) 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 BOU 057

• Stars with 16 points with vertex angle not equal to 45°

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