Bourgoin, Plate 128

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of .37 (π/480)°.
• Contains one regular 12-pointed star polygon with vertex angle of 51°.
• Contains one regular 15-pointed star polygon with vertex angle of 51°.
• There are 12 non-regular reflective tiles (including 2 kites) and one reflective pair.
• The tiling satisfies the interlace condition and has no finite interlace and two infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 809 polygons.

1. Photo by David Wade: LOU 077 (No location, Cairo, Egypt. Louvre, Paris) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1350-1450AD, 750-854AH)
2. Drawn from Egyptian pattern of unknown location 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.} Fuller version available on Internet.

• Wade photo BOU 128
• Wade photo LOU 077

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