Cappella Palatina, Palazzo dei Normanni, Palermo

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains one regular 12-pointed star polygon with vertex angle of 90°.
• There are five non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 307 polygons.

1. Page 112 (top) ( Cappella Palatina, Palazzo dei Normanni, Palermo, Italy. Mosaic decoration,) of F M Hessemer. Historic Designs and Patterns in Color, Dover, a1840. ISBN 048626425. [hessemer] {This collection is unusual in giving the source for almost all the patterns.} Available on Internet.(1132-40AD, 525-34AH)
2. Page 242, Fig. 106b (al-'Amri, Qus, Egypt) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}(1156AD, 550AH)
3. E.3841:40-1938 (Cairo, Egypt, Sketchbook by James Wild) of V&A collections website. Website: collections.vam.ac.uk, UK, 2015. [vami] {Website}

• V&A record Sketchbook

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