Minaret of Chellah Mosque, Rabat

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one square.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There is one non-regular reflective tile.
• The tiling satisfies the interlace condition and has one finite interlace and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 111 polygons.

1. Alhambra Museum, RE3559? (Alhambra museum, Spain. Two colour interlacing) from [pc]
2. Internet photo (Monastery of San Juan de los Reyes, Toledo, Spain) from [pc]
3. Page 103 (Chellah Mosque, Rabat, Morocco. Minaret, colour from here, ) from [castera]
4. Page 14 (Source not given, black and white) from [cahier]
5. Page 59 (Bardo, Tunis, Tunisia. From a stucco ceiling) from [field4]
6. Vol 1, page 201 (Morocco. Panel of zalijs, red and white) from [paccard]

• Tiling whose tile angles are a multiple of 45° and whose lengths are p+q*sqrt(2).

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