Mosaic pavement from Cairo

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains 9 squares.
• Contains one regular octagon.
• There are three non-regular reflective tiles.
• The tiling satisfies the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 263 polygons.

1. Plate XXXV(1) (Location uncertain, Cairo, Egypt. Mosaic pavement, Arabian ornament, black and white marble and red tile) of Owen Jones. The Grammar of Ornament, Dover, 1856. ISBN 048625463. [jones] {Excellent book with 100 colour plates, with many containing several tiling patterns.} Fuller version available on Internet.

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