Sabil-Kuttab, Qaytbay, Cairo

• The symmetry group of the tiling is *12.0• (d12.0).
• All the internal angles of the constituent polygons are a multiple of 5°.
• Contains two squares.
• Contains one regular 12-pointed star polygon with vertex angle of 60°.
• There are 12 non-regular reflective tiles and two reflective pairs and two tiles with no mirror image.
• The tiling is edge-to-edge.
• As drawn, contains about 277 polygons.

1. EGY 0810 (Sabil-Kuttab, Qaytbay, Cairo, Egypt. Roundel) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}

• Wade photo EGY 0810

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