Bourgoin, Plate 185

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains five regular two-pointed star polygons with vertex angle of 72°.
• Contains one regular five-pointed star polygon with vertex angle of 72°.
• Contains one regular 10-pointed star polygon with vertex angle of 72°.
• There are 9 non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has one finite interlace and three infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 576 polygons.

1. Photo by David Wade: SYR 0622 (Bahramiye Mosque, Aleppo, Syria) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1583AD, 991AH)
2. Photo by David Wade: SYR 0722 (Azem Palace, Hama, Syria) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1742AD, 1155AH)
3. Plate 185 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 185
• Wade photo SYR 0722
• Wade photo SYR 0621

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