Bourgoin, Plate 35

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 12°.
• Contains one regular five-pointed star polygon with vertex angle of 36°.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are 6 non-regular reflective tiles (including one dart).
• The tiling satisfies the interlace condition and has one finite interlace and two infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 250 polygons.

1. Page 192 top (Syria, Damascus. Doors of Nur ad-Din's hospital) of Markus Hattstein and Peter Delius. Islam : art and architecture, Konemann, Cologne, 2000. ISBN 382902558. [hattstein] (1154AD, 548AH)
2. Page 35 (pentagons omitted) 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.
3. Page 513, Figure 37 (Drawing from Bourgoin) of A. F. Calvert. Moorish remains in Spain, London, New York, J. Lane, Pressmark 18.F.85, 1906. [calvert] {586 pages} Available on Internet.

• Wade photo BOU 035

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